pre_text: entergy new orleans , inc . management 2019s financial discussion and analysis plan to spin off the utility 2019s transmission business see the 201cplan to spin off the utility 2019s transmission business 201d section of entergy corporation and subsidiaries management 2019s financial discussion and analysis for a discussion of this matter , including the planned retirement of debt and preferred securities . results of operations net income 2011 compared to 2010 net income increased $ 4.9 million primarily due to lower other operation and maintenance expenses , lower taxes other than income taxes , a lower effective income tax rate , and lower interest expense , partially offset by lower net revenue . 2010 compared to 2009 net income remained relatively unchanged , increasing $ 0.6 million , primarily due to higher net revenue and lower interest expense , almost entirely offset by higher other operation and maintenance expenses , higher taxes other than income taxes , lower other income , and higher depreciation and amortization expenses . net revenue 2011 compared to 2010 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 2011 to 2010 . amount ( in millions ) .
post_text: the retail electric price variance is primarily due to formula rate plan decreases effective october 2010 and october 2011 . see note 2 to the financial statements for a discussion of the formula rate plan filing . the net gas revenue variance is primarily due to milder weather in 2011 compared to 2010 . the gas cost recovery asset variance is primarily due to the recognition in 2010 of a $ 3 million gas operations regulatory asset associated with the settlement of entergy new orleans 2019s electric and gas formula rate plan case and the amortization of that asset . see note 2 to the financial statements for additional discussion of the formula rate plan settlement. .
table: Amount (In Millions)
table: 2010 net revenue $272.9
table: Retail electric price (16.9)
table: Net gas revenue (9.1)
table: Gas cost recovery asset (3.0)
table: Volume/weather 5.4
table: Other (2.3)
table: 2011 net revenue $247.0
question: Analyse this data from a financial earnings document. from the change in net revenue in 2011 , what percentage is attributed to change in retail electric price?