entergy louisiana , llc and subsidiaries management 2019s financial discussion and analysis in industrial usage is primarily due to increased demand from new customers and expansion projects , primarily in the chemicals industry .the louisiana act 55 financing savings obligation variance results from a regulatory charge for tax savings to be shared with customers per an agreement approved by the lpsc .the tax savings resulted from the 2010-2011 irs audit settlement on the treatment of the louisiana act 55 financing of storm costs for hurricane gustav and hurricane ike .see note 3 to the financial statements for additional discussion of the settlement and benefit sharing .included in other is a provision of $ 23 million recorded in 2016 related to the settlement of the waterford 3 replacement steam generator prudence review proceeding , offset by a provision of $ 32 million recorded in 2015 related to the uncertainty at that time associated with the resolution of the waterford 3 replacement steam generator prudence review proceeding .see note 2 to the financial statements for a discussion of the waterford 3 replacement steam generator prudence review proceeding .2015 compared to 2014 net revenue consists of operating revenues net of : 1 ) fuel , fuel-related expenses , and gas purchased for resale , 2 ) purchased power expenses , and 3 ) other regulatory charges ( credits ) .following is an analysis of the change in net revenue comparing 2015 to 2014 .amount ( in millions ) .                                                   | amount ( in millions )
2014 net revenue                                  | $ 2246.1              
retail electric price                             | 180.0                 
volume/weather                                    | 39.5                  
waterford 3 replacement steam generator provision | -32.0 ( 32.0 )        
miso deferral                                     | -32.0 ( 32.0 )        
other                                             | 7.2                   
2015 net revenue                                  | $ 2408.8               the retail electric price variance is primarily due to formula rate plan increases , as approved by the lpsc , effective december 2014 and january 2015 .entergy louisiana 2019s formula rate plan increases are discussed in note 2 to the financial statements .the volume/weather variance is primarily due to an increase of 841 gwh , or 2% ( 2 % ) , in billed electricity usage , as a result of increased industrial usage primarily due to increased demand for existing large refinery customers , new customers , and expansion projects primarily in the chemicals industry , partially offset by a decrease in demand in the chemicals industry as a result of a seasonal outage for an existing customer .the waterford 3 replacement steam generator provision is due to a regulatory charge of approximately $ 32 million recorded in 2015 related to the uncertainty associated with the resolution of the waterford 3 replacement steam generator project .see note 2 to the financial statements for a discussion of the waterford 3 replacement steam generator prudence review proceeding .the miso deferral variance is due to the deferral in 2014 of non-fuel miso-related charges , as approved by the lpsc .the deferral of non-fuel miso-related charges is partially offset in other operation and maintenance expenses .see note 2 to the financial statements for further discussion of the recovery of non-fuel miso-related charges. .
Question: what was the difference in net revenue between 2015 and 2014?
Steps: subtract(2408.8, 2246.1)
Answer: 162.7
Question: and what was the net revenue in 2014?

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.
entergy louisiana , llc and subsidiaries management 2019s financial discussion and analysis in industrial usage is primarily due to increased demand from new customers and expansion projects , primarily in the chemicals industry .the louisiana act 55 financing savings obligation variance results from a regulatory charge for tax savings to be shared with customers per an agreement approved by the lpsc .the tax savings resulted from the 2010-2011 irs audit settlement on the treatment of the louisiana act 55 financing of storm costs for hurricane gustav and hurricane ike .see note 3 to the financial statements for additional discussion of the settlement and benefit sharing .included in other is a provision of $ 23 million recorded in 2016 related to the settlement of the waterford 3 replacement steam generator prudence review proceeding , offset by a provision of $ 32 million recorded in 2015 related to the uncertainty at that time associated with the resolution of the waterford 3 replacement steam generator prudence review proceeding .see note 2 to the financial statements for a discussion of the waterford 3 replacement steam generator prudence review proceeding .2015 compared to 2014 net revenue consists of operating revenues net of : 1 ) fuel , fuel-related expenses , and gas purchased for resale , 2 ) purchased power expenses , and 3 ) other regulatory charges ( credits ) .following is an analysis of the change in net revenue comparing 2015 to 2014 .amount ( in millions ) .                                                   | amount ( in millions )
2014 net revenue                                  | $ 2246.1              
retail electric price                             | 180.0                 
volume/weather                                    | 39.5                  
waterford 3 replacement steam generator provision | -32.0 ( 32.0 )        
miso deferral                                     | -32.0 ( 32.0 )        
other                                             | 7.2                   
2015 net revenue                                  | $ 2408.8               the retail electric price variance is primarily due to formula rate plan increases , as approved by the lpsc , effective december 2014 and january 2015 .entergy louisiana 2019s formula rate plan increases are discussed in note 2 to the financial statements .the volume/weather variance is primarily due to an increase of 841 gwh , or 2% ( 2 % ) , in billed electricity usage , as a result of increased industrial usage primarily due to increased demand for existing large refinery customers , new customers , and expansion projects primarily in the chemicals industry , partially offset by a decrease in demand in the chemicals industry as a result of a seasonal outage for an existing customer .the waterford 3 replacement steam generator provision is due to a regulatory charge of approximately $ 32 million recorded in 2015 related to the uncertainty associated with the resolution of the waterford 3 replacement steam generator project .see note 2 to the financial statements for a discussion of the waterford 3 replacement steam generator prudence review proceeding .the miso deferral variance is due to the deferral in 2014 of non-fuel miso-related charges , as approved by the lpsc .the deferral of non-fuel miso-related charges is partially offset in other operation and maintenance expenses .see note 2 to the financial statements for further discussion of the recovery of non-fuel miso-related charges. .
Question: what was the difference in net revenue between 2015 and 2014?
Steps: subtract(2408.8, 2246.1)
Answer: 162.7
Question: and what was the net revenue in 2014?
