however , these policies either do not meet the definition of critical accounting estimates described above or are not currently material items in our financial statements . we review our estimates , judgments and assumptions periodically and reflect the effects of revisions in the period that they are deemed to be necessary . we believe that these estimates are reasonable . however , actual results could differ materially from these estimates . 31 goodwill and franchise value we are required to test our goodwill and franchise value for impairment at least annually , or more frequently if conditions indicate that an impairment may have occurred . goodwill is tested for impairment at the reporting unit level . our reporting units are individual retail automotive franchises as this is the level at which discrete financial information is available and for which operating results are regularly reviewed by our chief operating decision maker to allocate resources and assess performance . we have the option to qualitatively or quantitatively assess goodwill for impairment and , in 2015 , evaluated our goodwill using a quantitative assessment process . we test goodwill for impairment using the adjusted present value method ( “ apv ” ) to estimate the fair value of our reporting unit . under the apv method , future cash flows are based on recently prepared budget forecasts and business plans and are used to estimate the future economic benefits that the reporting unit will generate . an estimate of the appropriate discount rate is utilized to convert the future economic benefits to their present value equivalent . the quantitative goodwill impairment test is a two-step process . the first step identifies potential impairments by comparing the calculated fair value of a reporting unit with its book value . if the fair value of the reporting unit exceeds the carrying amount , goodwill is not impaired and the second step is not necessary . if the carrying value exceeds the fair value , the second step includes determining the implied fair value in the same manner as the amount of goodwill recognized in a business combination is determined . the implied fair value of goodwill is then compared with the carrying amount to determine if an impairment loss should be recorded . we also may use a market approach to determine whether or not the carrying amount of our goodwill is impaired . these market data points include our acquisition and divestiture experience and third-party broker estimates . as of december 31 , 2015 , we had $ 213.2 million of goodwill on our balance sheet associated with 133 reporting units . the first step of our annual goodwill impairment analysis , which we perform as of october 1 of each year , did not result in an indication of impairment in 2015 , 2014 or 2013. we have determined the appropriate unit of accounting for testing franchise rights for impairment is on an individual store basis . we have the option to qualitatively or quantitatively assess indefinite-lived intangible assets for impairment . in 2015 , we evaluated our indefinite-lived intangible assets using a quantitative assessment process . we estimate the fair value of our franchise rights primarily using the multi-period excess earnings ( “ mpee ” ) model . the forecasted cash flows used in the mpee model contain inherent uncertainties , including significant estimates and assumptions related to growth rates , margins , general operating expenses , and cost of capital . we use primarily internally-developed forecasts and business plans to estimate the future cash flows that each franchise will generate . we have determined that only certain cash flows of the store are directly attributable to the franchise rights . we estimate the appropriate interest rate to discount future cash flows to their present value equivalent taking into consideration factors such as a risk-free rate , a peer group average beta , an equity risk premium and a small stock risk premium . we also may use a market approach to determine the fair value of our franchise rights . these market data points include our acquisition and divestiture experience and third-party broker estimates . as of december 31 , 2015 , we had $ 157.7 million of franchise value on our balance sheet associated with 95 stores . no individual store accounted for more than 5 % of our total franchise value as of december 31 , 2015. our impairment testing of franchise value did not indicate any impairment in 2015 , 2014 or 2013. we are subject to financial statement risk to the extent that our goodwill or franchise rights become impaired due to decreases in the fair value . a future decline in performance , decreases in projected growth rates or margin assumptions or changes in discount rates could result in a potential impairment , which could have a material adverse impact on our financial position and results of operations . furthermore , if a manufacturer becomes insolvent , we may be required to record a partial or total impairment on the franchise value or goodwill related to that manufacturer . no individual manufacturer accounted for more than 19 % of our total franchise value and goodwill as of december 31 , 2015. see notes 1 and 5 of notes to consolidated financial statements for additional information . long-lived assets we estimate the depreciable lives of our property and equipment , including leasehold improvements , and review each asset group for impairment when events or circumstances indicate that their carrying amounts may not be recoverable . we determined an asset group is comprised of the long-lived assets used in the operations of an individual store . 32 we determine a triggering event has occurred by reviewing store forecasted and historical financial performance . an asset group is evaluated for recoverability if it has an operating loss in the current year and two of the prior three years . story_separator_special_tag on average , in 2015 and 2014 , each of our stores sold 62 and 56 retail used vehicle units per month , respectively . we continue to target increasing sales to 75 units per store per month . used retail vehicle gross profit increased 34.6 % in 2015 compared to 2014 , primarily driven by the acquisition of the dch auto group in the fourth quarter of 2014. on a same store basis , gross profit increased 10.9 % in 2015 compared to 2014 , primarily due to increased unit volume and increased gross profit per unit , partially offset by slight margin declines . the unit volume growth was driven by a mix shift toward certified pre-owned and core vehicles , which have higher average selling prices , but lower gross margins than value autos . used retail vehicle gross profit dollars increased 18.8 % in 2014 compared to 2013. on a same store basis , gross profit increased 5.8 % in 2014 compared to 2013. these increases were primarily due to volume growth , partially offset by decreases in the average gross profit per unit sold . the volume growth was driven by a larger number of late-model vehicles being available in the marketplace compared to the prior few years . vehicle production levels were cut significantly in the 2009 and 2010 model years , and as production increased in subsequent years , a greater number of vehicles are available due to the natural trade cycle and more lease returns . similar to new vehicle sales , we focus on gross profit dollars earned per unit , not on gross margin , in evaluating our sales performance . gross profit per unit was lower in 2014 than in 2013 primarily due to shift in mix to more late-model vehicles due to the increase in supply noted above . these vehicles are more homogenous in nature and typically are more commoditized relative to older cars that have a wider variety of mileage and condition , allowing more gross profit to be earned per vehicle due to their unique nature . used vehicle wholesale revenue and gross profit replace_table_token_17_th 39 replace_table_token_18_th wholesale transactions are vehicles we have purchased from customers or vehicles we have attempted to sell via retail that we elect to dispose of due to inventory age or other factors . wholesale vehicles are typically sold at or near inventory cost and do not comprise a meaningful component of our gross profit . finance and insurance replace_table_token_19_th replace_table_token_20_th the increase in finance and insurance revenue in 2015 compared to 2014 was primarily due to higher unit volume as a result of the acquisition of the dch auto group in the fourth quarter of 2014. on a same store basis , the increase was due to higher unit volume sales and an increase in the average finance and insurance revenue earned per unit . the increase in finance and insurance sales in 2014 compared to 2013 was driven by increased vehicle sales volume and higher average selling prices per retail unit . 40 trends in penetration rates for total new and used retail vehicles sold are detailed below : replace_table_token_21_th penetration rates have been consistent for finance and insurance and service contracts in all three years . penetration rates in lifetime lube , oil and filter contracts decreased in 2015 compared to prior years because we only began to offer this product at stores acquired as part of the dch auto group in the second half of 2015 , diluting the average across our entire store base . penetration rates , excluding the dch stores , remained relatively consistent . we believe the availability of credit is one of the key indicators of our ability to retail automobiles , as we arrange financing on almost 80 % of the vehicles we sell and believe a significant amount of the vehicles we do not arrange financing for are financed elsewhere . to evaluate the availability of credit , we categorize our customers based on their fair , isaac and company ( fico ) credit score . the distribution by credit score for the customers we arranged financing for was as follows : replace_table_token_22_th we continued to see the availability of consumer credit expand in 2015 compared to 2014 and in 2014 compared to 2013. service , body and parts revenue and gross profit replace_table_token_23_th 41 replace_table_token_24_th our service , body and parts sales grew in all areas in 2015 compared to 2014 and in 2014 compared to 2013. there are more late-model units in operation as new vehicle sales volumes have been increasing annually since 2010. we believe this increase in units in operation will benefit our service , body and parts sales in the coming years as more late-model vehicles age , necessitating repairs and maintenance . we focus on retaining customers by offering competitively priced routine maintenance and through our marketing efforts . we increased our same store customer pay business 7.8 % in 2015 compared to 2014 and by 9.0 % in 2014 compared to 2013. same store warranty sales increased 25.3 % in 2015 compared to 2014 and 23.2 % in 2014 compared to 2013 , primarily due to significant vehicle recalls across multiple manufacturers . additionally , we continue to see increases in warranty sales due to the growing number of units in operation . routine maintenance , such as oil changes , offered by certain brands , including bmw , toyota and general motors , for two to four years after a vehicle is sold , provides for future work as consumers return to the franchised dealer for this maintenance item . increases in same-store warranty work by segment were as follows : replace_table_token_25_th same store wholesale parts grew 4.6 % and 8.0 % , respectively , in 2015 compared to 2014 and in 2014 compared to 2013 , primarily due to targeting independent repair shops , competing new vehicle dealers and wholesale

liquidity and capital resources we manage our liquidity and capital resources to fund our operating , investing and financing activities . we rely primarily on cash flows from operations and borrowings under our credit facilities as the main sources for liquidity . we use those funds to invest in capital expenditures , increase working capital and fulfill contractual obligations . remaining funds are used for acquisitions , debt retirement , cash dividends , share repurchases and general business purposes . available sources below is a summary of our immediately available funds ( in thousands ) : replace_table_token_60_th cash flows generated by operating activities and from our credit facility are our most significant sources of liquidity . we also have the ability to raise funds through mortgaging real estate . as of december 31 , 2015 , our unencumbered owned operating real estate had a book value of $ 211.5 million . assuming we can obtain financing on 75 % of this value , we estimate we could have obtained additional funds of approximately $ 158.6 million at december 31 , 2015 ; however , no assurances can be provided that the appraised value of these properties will match or exceed their book values or that this capital source will be available on terms acceptable to us . in addition to the above sources of liquidity , potential sources include the placement of subordinated debentures or loans , the sale of equity securities and the sale of stores or other assets . we evaluate all of these options and may select one or more of them depending on overall capital needs and the availability and cost of capital , although no assurances can be provided that these capital sources will be available in sufficient amounts or with terms acceptable to us . information about our cash flows , by category , is presented in our consolidated statements of cash flows .


 Write a concise suspicious activity report of the following text delimited by triple backquotes. Return your response as a formal report which covers the key points highlighting the location,dates,entity names and account holder information in chronological order of the text.
     ```liquidity and capital resources we manage our liquidity and capital resources to fund our operating , investing and financing activities . we rely primarily on cash flows from operations and borrowings under our credit facilities as the main sources for liquidity . we use those funds to invest in capital expenditures , increase working capital and fulfill contractual obligations . remaining funds are used for acquisitions , debt retirement , cash dividends , share repurchases and general business purposes . available sources below is a summary of our immediately available funds ( in thousands ) : replace_table_token_60_th cash flows generated by operating activities and from our credit facility are our most significant sources of liquidity . we also have the ability to raise funds through mortgaging real estate . as of december 31 , 2015 , our unencumbered owned operating real estate had a book value of $ 211.5 million . assuming we can obtain financing on 75 % of this value , we estimate we could have obtained additional funds of approximately $ 158.6 million at december 31 , 2015 ; however , no assurances can be provided that the appraised value of these properties will match or exceed their book values or that this capital source will be available on terms acceptable to us . in addition to the above sources of liquidity , potential sources include the placement of subordinated debentures or loans , the sale of equity securities and the sale of stores or other assets . we evaluate all of these options and may select one or more of them depending on overall capital needs and the availability and cost of capital , although no assurances can be provided that these capital sources will be available in sufficient amounts or with terms acceptable to us . information about our cash flows , by category , is presented in our consolidated statements of cash flows .
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 Suspicious Activity Report : however , these policies either do not meet the definition of critical accounting estimates described above or are not currently material items in our financial statements . we review our estimates , judgments and assumptions periodically and reflect the effects of revisions in the period that they are deemed to be necessary . we believe that these estimates are reasonable . however , actual results could differ materially from these estimates . 31 goodwill and franchise value we are required to test our goodwill and franchise value for impairment at least annually , or more frequently if conditions indicate that an impairment may have occurred . goodwill is tested for impairment at the reporting unit level . our reporting units are individual retail automotive franchises as this is the level at which discrete financial information is available and for which operating results are regularly reviewed by our chief operating decision maker to allocate resources and assess performance . we have the option to qualitatively or quantitatively assess goodwill for impairment and , in 2015 , evaluated our goodwill using a quantitative assessment process . we test goodwill for impairment using the adjusted present value method ( “ apv ” ) to estimate the fair value of our reporting unit . under the apv method , future cash flows are based on recently prepared budget forecasts and business plans and are used to estimate the future economic benefits that the reporting unit will generate . an estimate of the appropriate discount rate is utilized to convert the future economic benefits to their present value equivalent . the quantitative goodwill impairment test is a two-step process . the first step identifies potential impairments by comparing the calculated fair value of a reporting unit with its book value . if the fair value of the reporting unit exceeds the carrying amount , goodwill is not impaired and the second step is not necessary . if the carrying value exceeds the fair value , the second step includes determining the implied fair value in the same manner as the amount of goodwill recognized in a business combination is determined . the implied fair value of goodwill is then compared with the carrying amount to determine if an impairment loss should be recorded . we also may use a market approach to determine whether or not the carrying amount of our goodwill is impaired . these market data points include our acquisition and divestiture experience and third-party broker estimates . as of december 31 , 2015 , we had $ 213.2 million of goodwill on our balance sheet associated with 133 reporting units . the first step of our annual goodwill impairment analysis , which we perform as of october 1 of each year , did not result in an indication of impairment in 2015 , 2014 or 2013. we have determined the appropriate unit of accounting for testing franchise rights for impairment is on an individual store basis . we have the option to qualitatively or quantitatively assess indefinite-lived intangible assets for impairment . in 2015 , we evaluated our indefinite-lived intangible assets using a quantitative assessment process . we estimate the fair value of our franchise rights primarily using the multi-period excess earnings ( “ mpee ” ) model . the forecasted cash flows used in the mpee model contain inherent uncertainties , including significant estimates and assumptions related to growth rates , margins , general operating expenses , and cost of capital . we use primarily internally-developed forecasts and business plans to estimate the future cash flows that each franchise will generate . we have determined that only certain cash flows of the store are directly attributable to the franchise rights . we estimate the appropriate interest rate to discount future cash flows to their present value equivalent taking into consideration factors such as a risk-free rate , a peer group average beta , an equity risk premium and a small stock risk premium . we also may use a market approach to determine the fair value of our franchise rights . these market data points include our acquisition and divestiture experience and third-party broker estimates . as of december 31 , 2015 , we had $ 157.7 million of franchise value on our balance sheet associated with 95 stores . no individual store accounted for more than 5 % of our total franchise value as of december 31 , 2015. our impairment testing of franchise value did not indicate any impairment in 2015 , 2014 or 2013. we are subject to financial statement risk to the extent that our goodwill or franchise rights become impaired due to decreases in the fair value . a future decline in performance , decreases in projected growth rates or margin assumptions or changes in discount rates could result in a potential impairment , which could have a material adverse impact on our financial position and results of operations . furthermore , if a manufacturer becomes insolvent , we may be required to record a partial or total impairment on the franchise value or goodwill related to that manufacturer . no individual manufacturer accounted for more than 19 % of our total franchise value and goodwill as of december 31 , 2015. see notes 1 and 5 of notes to consolidated financial statements for additional information . long-lived assets we estimate the depreciable lives of our property and equipment , including leasehold improvements , and review each asset group for impairment when events or circumstances indicate that their carrying amounts may not be recoverable . we determined an asset group is comprised of the long-lived assets used in the operations of an individual store . 32 we determine a triggering event has occurred by reviewing store forecasted and historical financial performance . an asset group is evaluated for recoverability if it has an operating loss in the current year and two of the prior three years . story_separator_special_tag on average , in 2015 and 2014 , each of our stores sold 62 and 56 retail used vehicle units per month , respectively . we continue to target increasing sales to 75 units per store per month . used retail vehicle gross profit increased 34.6 % in 2015 compared to 2014 , primarily driven by the acquisition of the dch auto group in the fourth quarter of 2014. on a same store basis , gross profit increased 10.9 % in 2015 compared to 2014 , primarily due to increased unit volume and increased gross profit per unit , partially offset by slight margin declines . the unit volume growth was driven by a mix shift toward certified pre-owned and core vehicles , which have higher average selling prices , but lower gross margins than value autos . used retail vehicle gross profit dollars increased 18.8 % in 2014 compared to 2013. on a same store basis , gross profit increased 5.8 % in 2014 compared to 2013. these increases were primarily due to volume growth , partially offset by decreases in the average gross profit per unit sold . the volume growth was driven by a larger number of late-model vehicles being available in the marketplace compared to the prior few years . vehicle production levels were cut significantly in the 2009 and 2010 model years , and as production increased in subsequent years , a greater number of vehicles are available due to the natural trade cycle and more lease returns . similar to new vehicle sales , we focus on gross profit dollars earned per unit , not on gross margin , in evaluating our sales performance . gross profit per unit was lower in 2014 than in 2013 primarily due to shift in mix to more late-model vehicles due to the increase in supply noted above . these vehicles are more homogenous in nature and typically are more commoditized relative to older cars that have a wider variety of mileage and condition , allowing more gross profit to be earned per vehicle due to their unique nature . used vehicle wholesale revenue and gross profit replace_table_token_17_th 39 replace_table_token_18_th wholesale transactions are vehicles we have purchased from customers or vehicles we have attempted to sell via retail that we elect to dispose of due to inventory age or other factors . wholesale vehicles are typically sold at or near inventory cost and do not comprise a meaningful component of our gross profit . finance and insurance replace_table_token_19_th replace_table_token_20_th the increase in finance and insurance revenue in 2015 compared to 2014 was primarily due to higher unit volume as a result of the acquisition of the dch auto group in the fourth quarter of 2014. on a same store basis , the increase was due to higher unit volume sales and an increase in the average finance and insurance revenue earned per unit . the increase in finance and insurance sales in 2014 compared to 2013 was driven by increased vehicle sales volume and higher average selling prices per retail unit . 40 trends in penetration rates for total new and used retail vehicles sold are detailed below : replace_table_token_21_th penetration rates have been consistent for finance and insurance and service contracts in all three years . penetration rates in lifetime lube , oil and filter contracts decreased in 2015 compared to prior years because we only began to offer this product at stores acquired as part of the dch auto group in the second half of 2015 , diluting the average across our entire store base . penetration rates , excluding the dch stores , remained relatively consistent . we believe the availability of credit is one of the key indicators of our ability to retail automobiles , as we arrange financing on almost 80 % of the vehicles we sell and believe a significant amount of the vehicles we do not arrange financing for are financed elsewhere . to evaluate the availability of credit , we categorize our customers based on their fair , isaac and company ( fico ) credit score . the distribution by credit score for the customers we arranged financing for was as follows : replace_table_token_22_th we continued to see the availability of consumer credit expand in 2015 compared to 2014 and in 2014 compared to 2013. service , body and parts revenue and gross profit replace_table_token_23_th 41 replace_table_token_24_th our service , body and parts sales grew in all areas in 2015 compared to 2014 and in 2014 compared to 2013. there are more late-model units in operation as new vehicle sales volumes have been increasing annually since 2010. we believe this increase in units in operation will benefit our service , body and parts sales in the coming years as more late-model vehicles age , necessitating repairs and maintenance . we focus on retaining customers by offering competitively priced routine maintenance and through our marketing efforts . we increased our same store customer pay business 7.8 % in 2015 compared to 2014 and by 9.0 % in 2014 compared to 2013. same store warranty sales increased 25.3 % in 2015 compared to 2014 and 23.2 % in 2014 compared to 2013 , primarily due to significant vehicle recalls across multiple manufacturers . additionally , we continue to see increases in warranty sales due to the growing number of units in operation . routine maintenance , such as oil changes , offered by certain brands , including bmw , toyota and general motors , for two to four years after a vehicle is sold , provides for future work as consumers return to the franchised dealer for this maintenance item . increases in same-store warranty work by segment were as follows : replace_table_token_25_th same store wholesale parts grew 4.6 % and 8.0 % , respectively , in 2015 compared to 2014 and in 2014 compared to 2013 , primarily due to targeting independent repair shops , competing new vehicle dealers and wholesale

