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 arkansas , inc . and subsidiaries management 2019s financial discussion and analysis results of operations net income 2016 compared to 2015 net income increased $ 92.9 million primarily due to higher net revenue and lower other operation and maintenance expenses , partially offset by a higher effective income tax rate and higher depreciation and amortization expenses . 2015 compared to 2014 net income decreased $ 47.1 million primarily due to higher other operation and maintenance expenses , partially offset by higher net revenue . net revenue 2016 compared to 2015 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 2016 to 2015 . amount ( in millions ) . <table class='wikitable'><tr><td>1</td><td>-</td><td>amount ( in millions )</td></tr><tr><td>2</td><td>2015 net revenue</td><td>$ 1362.2</td></tr><tr><td>3</td><td>retail electric price</td><td>161.5</td></tr><tr><td>4</td><td>other</td><td>-3.2 ( 3.2 )</td></tr><tr><td>5</td><td>2016 net revenue</td><td>$ 1520.5</td></tr></table> the retail electric price variance is primarily due to an increase in base rates , as approved by the apsc . the new base rates were effective february 24 , 2016 and began billing with the first billing cycle of april 2016 . the increase includes 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 is related to the purchase of power block 2 of the union power station . see note 2 to the financial statements for further discussion of the rate case . see note 14 to the financial statements for further discussion of the union power station purchase. .
Question: what was the change in the net revenue for entergy arkansas , inc. from 2015 to 2016?
Answer: 158.3
Question: and what is this change as a portion of that net revenue in 2015?

0.11621