to determine stock-based compensation expense , the grant date fair value is applied to the options granted with a reduction for estimated forfeitures .we recognize compensation expense for stock options on a straight-line basis over the specified vesting period .at december 31 , 2013 and 2012 , options for 10204000 and 12759000 shares of common stock were exercisable at a weighted-average price of $ 89.46 and $ 90.86 , respectively .the total intrinsic value of options exercised during 2014 , 2013 and 2012 was $ 90 million , $ 86 million and $ 37 million , respectively .cash received from option exercises under all incentive plans for 2014 , 2013 and 2012 was approximately $ 215 million , $ 208 million and $ 118 million , respectively .the tax benefit realized from option exercises under all incentive plans for 2014 , 2013 and 2012 was approximately $ 33 million , $ 31 million and $ 14 million , respectively .shares of common stock available during the next year for the granting of options and other awards under the incentive plans were 17997353 at december 31 , 2014 .total shares of pnc common stock authorized for future issuance under equity compensation plans totaled 19017057 shares at december 31 , 2014 , which includes shares available for issuance under the incentive plans and the employee stock purchase plan ( espp ) as described below .during 2014 , we issued approximately 2.4 million shares from treasury stock in connection with stock option exercise activity .as with past exercise activity , we currently intend to utilize primarily treasury stock for any future stock option exercises .awards granted to non-employee directors in 2014 , 2013 and 2012 include 21490 , 27076 and 25620 deferred stock units , respectively , awarded under the outside directors deferred stock unit plan .a deferred stock unit is a phantom share of our common stock , which is accounted for as a liability until such awards are paid to the participants in cash .as there are no vesting or service requirements on these awards , total compensation expense is recognized in full for these awards on the date of grant .incentive/performance unit share awards and restricted stock/share unit awards the fair value of nonvested incentive/performance unit share awards and restricted stock/share unit awards is initially determined based on prices not less than the market value of our common stock on the date of grant .the value of certain incentive/performance unit share awards is subsequently remeasured based on the achievement of one or more financial and other performance goals .the personnel and compensation committee ( 201cp&cc 201d ) of the board of directors approves the final award payout with respect to certain incentive/performance unit share awards .these awards have either a three-year or a four-year performance period and are payable in either stock or a combination of stock and cash .restricted stock/share unit awards have various vesting periods generally ranging from 3 years to 5 years .beginning in 2013 , we incorporated several enhanced risk- related performance changes to certain long-term incentive compensation programs .in addition to achieving certain financial performance metrics on both an absolute basis and relative to our peers , final payout amounts will be subject to reduction if pnc fails to meet certain risk-related performance metrics as specified in the award agreements .however , the p&cc has the discretion to waive any or all of this reduction under certain circumstances .the weighted-average grant date fair value of incentive/ performance unit share awards and restricted stock/unit awards granted in 2014 , 2013 and 2012 was $ 80.79 , $ 64.77 and $ 60.68 per share , respectively .the total fair value of incentive/performance unit share and restricted stock/unit awards vested during 2014 , 2013 and 2012 was approximately $ 119 million , $ 63 million and $ 55 million , respectively .we recognize compensation expense for such awards ratably over the corresponding vesting and/or performance periods for each type of program .table 121 : nonvested incentive/performance unit share awards and restricted stock/share unit awards 2013 rollforward shares in thousands nonvested incentive/ performance unit shares weighted- average grant date fair value nonvested restricted stock/ weighted- average grant date fair value . shares in thousands december 31 2013 | nonvested incentive/ performance unit shares 1647 | weighted-averagegrant datefair value $ 63.49 | nonvested restricted stock/ share units 3483 | weighted-averagegrant datefair value $ 62.70
granted                              | 723                                               | 79.90                                        | 1276                                         | 81.29                                       
vested/released                      | -513 ( 513 )                                      | 63.64                                        | -962 ( 962 )                                 | 62.32                                       
forfeited                            | -20 ( 20 )                                        | 69.18                                        | -145 ( 145 )                                 | 69.44                                       
december 31 2014                     | 1837                                              | $ 69.84                                      | 3652                                         | $ 69.03                                      the pnc financial services group , inc .2013 form 10-k 185 .
Question: combined, what was the value of tax benefits realized from option exercises under all incentive plans for 2014 and 2013?
Steps: Ask for number 33
Answer: 64.0
Question: and including the value for
Steps: Ask for number 31
Answer: 78.0
Question: so what was the average value during this time?
Steps: add(33, 31)
Answer: 26.0
Question: regarding non-vested incentive/performance unit shares, what was the change in the balance between 12/31/13 and 12/31/14?

Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.
to determine stock-based compensation expense , the grant date fair value is applied to the options granted with a reduction for estimated forfeitures .we recognize compensation expense for stock options on a straight-line basis over the specified vesting period .at december 31 , 2013 and 2012 , options for 10204000 and 12759000 shares of common stock were exercisable at a weighted-average price of $ 89.46 and $ 90.86 , respectively .the total intrinsic value of options exercised during 2014 , 2013 and 2012 was $ 90 million , $ 86 million and $ 37 million , respectively .cash received from option exercises under all incentive plans for 2014 , 2013 and 2012 was approximately $ 215 million , $ 208 million and $ 118 million , respectively .the tax benefit realized from option exercises under all incentive plans for 2014 , 2013 and 2012 was approximately $ 33 million , $ 31 million and $ 14 million , respectively .shares of common stock available during the next year for the granting of options and other awards under the incentive plans were 17997353 at december 31 , 2014 .total shares of pnc common stock authorized for future issuance under equity compensation plans totaled 19017057 shares at december 31 , 2014 , which includes shares available for issuance under the incentive plans and the employee stock purchase plan ( espp ) as described below .during 2014 , we issued approximately 2.4 million shares from treasury stock in connection with stock option exercise activity .as with past exercise activity , we currently intend to utilize primarily treasury stock for any future stock option exercises .awards granted to non-employee directors in 2014 , 2013 and 2012 include 21490 , 27076 and 25620 deferred stock units , respectively , awarded under the outside directors deferred stock unit plan .a deferred stock unit is a phantom share of our common stock , which is accounted for as a liability until such awards are paid to the participants in cash .as there are no vesting or service requirements on these awards , total compensation expense is recognized in full for these awards on the date of grant .incentive/performance unit share awards and restricted stock/share unit awards the fair value of nonvested incentive/performance unit share awards and restricted stock/share unit awards is initially determined based on prices not less than the market value of our common stock on the date of grant .the value of certain incentive/performance unit share awards is subsequently remeasured based on the achievement of one or more financial and other performance goals .the personnel and compensation committee ( 201cp&cc 201d ) of the board of directors approves the final award payout with respect to certain incentive/performance unit share awards .these awards have either a three-year or a four-year performance period and are payable in either stock or a combination of stock and cash .restricted stock/share unit awards have various vesting periods generally ranging from 3 years to 5 years .beginning in 2013 , we incorporated several enhanced risk- related performance changes to certain long-term incentive compensation programs .in addition to achieving certain financial performance metrics on both an absolute basis and relative to our peers , final payout amounts will be subject to reduction if pnc fails to meet certain risk-related performance metrics as specified in the award agreements .however , the p&cc has the discretion to waive any or all of this reduction under certain circumstances .the weighted-average grant date fair value of incentive/ performance unit share awards and restricted stock/unit awards granted in 2014 , 2013 and 2012 was $ 80.79 , $ 64.77 and $ 60.68 per share , respectively .the total fair value of incentive/performance unit share and restricted stock/unit awards vested during 2014 , 2013 and 2012 was approximately $ 119 million , $ 63 million and $ 55 million , respectively .we recognize compensation expense for such awards ratably over the corresponding vesting and/or performance periods for each type of program .table 121 : nonvested incentive/performance unit share awards and restricted stock/share unit awards 2013 rollforward shares in thousands nonvested incentive/ performance unit shares weighted- average grant date fair value nonvested restricted stock/ weighted- average grant date fair value . shares in thousands december 31 2013 | nonvested incentive/ performance unit shares 1647 | weighted-averagegrant datefair value $ 63.49 | nonvested restricted stock/ share units 3483 | weighted-averagegrant datefair value $ 62.70
granted                              | 723                                               | 79.90                                        | 1276                                         | 81.29                                       
vested/released                      | -513 ( 513 )                                      | 63.64                                        | -962 ( 962 )                                 | 62.32                                       
forfeited                            | -20 ( 20 )                                        | 69.18                                        | -145 ( 145 )                                 | 69.44                                       
december 31 2014                     | 1837                                              | $ 69.84                                      | 3652                                         | $ 69.03                                      the pnc financial services group , inc .2013 form 10-k 185 .
Question: combined, what was the value of tax benefits realized from option exercises under all incentive plans for 2014 and 2013?
Steps: Ask for number 33
Answer: 64.0
Question: and including the value for
Steps: Ask for number 31
Answer: 78.0
Question: so what was the average value during this time?
Steps: add(33, 31)
Answer: 26.0
Question: regarding non-vested incentive/performance unit shares, what was the change in the balance between 12/31/13 and 12/31/14?
