entergy texas , inc .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 ) .
[['', 'amount ( in millions )'], ['2007 net revenue', '$ 442.3'], ['volume/weather', '-4.6 ( 4.6 )'], ['reserve equalization', '-3.3 ( 3.3 )'], ['securitization transition charge', '9.1'], ['fuel recovery', '7.5'], ['other', '-10.1 ( 10.1 )'], ['2008 net revenue', '$ 440.9']]
the volume/weather variance is primarily due to decreased usage during the unbilled sales period .see "critical accounting estimates" below and note 1 to the financial statements for further discussion of the accounting for unbilled revenues .the reserve equalization variance is primarily due to lower reserve equalization revenue related to changes in the entergy system generation mix compared to the same period in 2007 .the securitization transition charge variance is primarily due to the issuance of securitization bonds .in june 2007 , entergy gulf states reconstruction funding i , a company wholly-owned and consolidated by entergy texas , issued securitization bonds and with the proceeds purchased from entergy texas the transition property , which is the right to recover from customers through a transition charge amounts sufficient to service the securitization bonds .see note 5 to the financial statements for additional information regarding the securitization bonds .the fuel recovery variance is primarily due to a reserve for potential rate refunds made in the first quarter 2007 as a result of a puct ruling related to the application of past puct rulings addressing transition to competition in texas .the other variance is primarily caused by various operational effects of the jurisdictional separation on revenues and fuel and purchased power expenses .gross operating revenues , fuel and purchased power expenses , and other regulatory charges gross operating revenues increased $ 229.3 million primarily due to the following reasons : an increase of $ 157 million in fuel cost recovery revenues due to higher fuel rates and increased usage , partially offset by interim fuel refunds to customers for fuel cost recovery over-collections through november 2007 .the refund was distributed over a two-month period beginning february 2008 .the interim refund and the puct approval is discussed in note 2 to the financial statements ; an increase of $ 37.1 million in affiliated wholesale revenue primarily due to increases in the cost of energy ; an increase in transition charge amounts collected from customers to service the securitization bonds as discussed above .see note 5 to the financial statements for additional information regarding the securitization bonds ; and implementation of an interim surcharge to collect $ 10.3 million in under-recovered incremental purchased capacity costs incurred through july 2007 .the surcharge was collected over a two-month period beginning february 2008 .the incremental capacity recovery rider and puct approval is discussed in note 2 to the financial statements. .

Question: what percent of the net change in revenue between 2007 and 2008 was due to fuel recovery?
Answer: -530%