( $ 66 million net-of-tax ) as a result of customer credits to be realized by electric customers of entergy louisiana , consistent with the terms of the stipulated settlement in the business combination proceeding . see note 2 to the financial statements for further discussion of the business combination and customer credits . results of operations for 2015 also include the sale in december 2015 of the 583 mw rhode island state energy center for a realized gain of $ 154 million ( $ 100 million net-of-tax ) on the sale and the $ 77 million ( $ 47 million net-of-tax ) write-off and regulatory charges to recognize that a portion of the assets associated with the waterford 3 replacement steam generator project is no longer probable of recovery . see note 14 to the financial statements for further discussion of the rhode island state energy center sale . see note 2 to the financial statements for further discussion of the waterford 3 replacement steam generator prudence review proceeding . net revenue utility following is an analysis of the change in net revenue comparing 2016 to 2015 . amount ( in millions ) .

amount ( in millions ): 2015 net revenue: 5829
retail electric price: 289
louisiana business combination customer credits: 107
volume/weather: 14
louisiana act 55 financing savings obligation: -17
other: -43
2016 net revenue: 6179

the retail electric price variance is primarily due to : 2022 an increase in base rates at entergy arkansas , as approved by the apsc . the new rates were effective february 24 , 2016 and began billing with the first billing cycle of april 2016 . the increase included an interim base rate adjustment surcharge , effective with the first billing cycle of april 2016 , to recover the incremental revenue requirement for the period february 24 , 2016 through march 31 , 2016 . a significant portion of the increase was related to the purchase of power block 2 of the union power station ; 2022 an increase in the purchased power and capacity acquisition cost recovery rider for entergy new orleans , as approved by the city council , effective with the first billing cycle of march 2016 , primarily related to the purchase of power block 1 of the union power station ; 2022 an increase in formula rate plan revenues for entergy louisiana , implemented with the first billing cycle of march 2016 , to collect the estimated first-year revenue requirement related to the purchase of power blocks 3 and 4 of the union power station ; and 2022 an increase in revenues at entergy mississippi , as approved by the mpsc , effective with the first billing cycle of july 2016 , and an increase in revenues collected through the storm damage rider . see note 2 to the financial statements for further discussion of the rate proceedings . see note 14 to the financial statements for discussion of the union power station purchase . the louisiana business combination customer credits variance is due to a regulatory liability of $ 107 million recorded by entergy in october 2015 as a result of the entergy gulf states louisiana and entergy louisiana business combination . consistent with the terms of the stipulated settlement in the business combination proceeding , electric customers of entergy louisiana will realize customer credits associated with the business combination ; accordingly , in october 2015 , entergy recorded a regulatory liability of $ 107 million ( $ 66 million net-of-tax ) . these costs are being entergy corporation and subsidiaries management 2019s financial discussion and analysis .

Questions:
what was the change in net revenue from 2015 to 2016, in millions?
how much of that change is represented by the total of retail electric price, counted in millions?

Answers:
350
82.6%