Financial report context:
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 ) .

Financial table:
amount ( in millions ): 2007 net revenue; column_2: $ 442.3
amount ( in millions ): volume/weather; column_2: -4.6 ( 4.6 )
amount ( in millions ): reserve equalization; column_2: -3.3 ( 3.3 )
amount ( in millions ): securitization transition charge; column_2: 9.1
amount ( in millions ): fuel recovery; column_2: 7.5
amount ( in millions ): other; column_2: -10.1 ( 10.1 )
amount ( in millions ): 2008 net revenue; column_2: $ 440.9

Additional report context:
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%