{"pre_text": ["entergy louisiana , llc management's financial discussion and analysis net revenue 2008 compared to 2007 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 .", "following is an analysis of the change in net revenue comparing 2008 to 2007 .", "amount ( in millions ) ."], "post_text": ["the retail electric price variance is primarily due to the cessation of the interim storm recovery through the formula rate plan upon the act 55 financing of storm costs and a credit passed on to customers as a result of the act 55 storm cost financing , partially offset by increases in the formula rate plan effective october 2007 .", "refer to \"hurricane rita and hurricane katrina\" and \"state and local rate regulation\" below for a discussion of the interim recovery of storm costs , the act 55 storm cost financing , and the formula rate plan filing .", "the purchased power capacity variance is due to the amortization of deferred capacity costs effective september 2007 as a result of the formula rate plan filing in may 2007 .", "purchased power capacity costs are offset in base revenues due to a base rate increase implemented to recover incremental deferred and ongoing purchased power capacity charges .", "see \"state and local rate regulation\" below for a discussion of the formula rate plan filing .", "the net wholesale revenue variance is primarily due to provisions recorded for potential rate refunds related to the treatment of interruptible load in pricing entergy system affiliate sales .", "gross operating revenue and , fuel and purchased power expenses gross operating revenues increased primarily due to an increase of $ 364.7 million in fuel cost recovery revenues due to higher fuel rates offset by decreased usage .", "the increase was partially offset by a decrease of $ 56.8 million in gross wholesale revenue due to a decrease in system agreement rough production cost equalization credits .", "fuel and purchased power expenses increased primarily due to increases in the average market prices of natural gas and purchased power , partially offset by a decrease in the recovery from customers of deferred fuel costs. ."], "table": [["", "amount ( in millions )"], ["2007 net revenue", "$ 991.1"], ["retail electric price", "-17.1 ( 17.1 )"], ["purchased power capacity", "-12.0 ( 12.0 )"], ["net wholesale revenue", "-7.4 ( 7.4 )"], ["other", "4.6"], ["2008 net revenue", "$ 959.2"]], "table_ori": [["", "Amount (In Millions)"], ["2007 net revenue", "$991.1"], ["Retail electric price", "(17.1)"], ["Purchased power capacity", "(12.0)"], ["Net wholesale revenue", "(7.4)"], ["Other", "4.6"], ["2008 net revenue", "$959.2"]]}

Question: what is the net change in net revenue during 2008?
Evidence:
table_2: the retail electric price of amount ( in millions ) is -17.1 ( 17.1 ) ;
table_3: the purchased power capacity of amount ( in millions ) is -12.0 ( 12.0 ) ;
table_4: the net wholesale revenue of amount ( in millions ) is -7.4 ( 7.4 ) ;
table_5: the other of amount ( in millions ) is 4.6 ;
Program: add(-17.1, -12.0), add(#0, -7.4), add(#1, 4.6)
Answer:
str_answer: -31.9
exe_answer: -31.9