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 ) .

Table: 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: the retail electric price adjustment accounted for what percentage of the 2015 total net revenue?
Answer: 7.5%
Calculation: divide(180.0, 2408.8)