Please answer the given financial question based on the context.
Context: entergy corporation and subsidiaries management's financial discussion and analysis net revenue 2004 compared to 2003 net revenue , which is entergy's measure of gross margin , consists of operating revenues net of : 1 ) fuel , fuel-related , and purchased power expenses and 2 ) other regulatory credits . following is an analysis of the change in net revenue comparing 2004 to 2003. .
||( in millions )|
|2003 net revenue|$ 4214.5|
|volume/weather|68.3|
|summer capacity charges|17.4|
|base rates|10.6|
|deferred fuel cost revisions|-46.3 ( 46.3 )|
|price applied to unbilled sales|-19.3 ( 19.3 )|
|other|-1.2 ( 1.2 )|
|2004 net revenue|$ 4244.0|
the volume/weather variance resulted primarily from increased usage , partially offset by the effect of milder weather on sales during 2004 compared to 2003 . billed usage increased a total of 2261 gwh in the industrial and commercial sectors . the summer capacity charges variance was due to the amortization in 2003 at entergy gulf states and entergy louisiana of deferred capacity charges for the summer of 2001 . entergy gulf states' amortization began in june 2002 and ended in may 2003 . entergy louisiana's amortization began in august 2002 and ended in july 2003 . base rates increased net revenue due to a base rate increase at entergy new orleans that became effective in june 2003 . the deferred fuel cost revisions variance resulted primarily from a revision in 2003 to an unbilled sales pricing estimate to more closely align the fuel component of that pricing with expected recoverable fuel costs at entergy louisiana . deferred fuel cost revisions also decreased net revenue due to a revision in 2004 to the estimate of fuel costs filed for recovery at entergy arkansas in the march 2004 energy cost recovery rider . the price applied to unbilled sales variance resulted from a decrease in fuel price in 2004 caused primarily by the effect of nuclear plant outages in 2003 on average fuel costs . gross operating revenues and regulatory credits gross operating revenues include an increase in fuel cost recovery revenues of $ 475 million and $ 18 million in electric and gas sales , respectively , primarily due to higher fuel rates in 2004 resulting from increases in the market prices of purchased power and natural gas . as such , this revenue increase is offset by increased fuel and purchased power expenses . other regulatory credits increased primarily due to the following : 2022 cessation of the grand gulf accelerated recovery tariff that was suspended in july 2003 ; 2022 the amortization in 2003 of deferred capacity charges for summer 2001 power purchases at entergy gulf states and entergy louisiana ; 2022 the deferral in 2004 of $ 14.3 million of capacity charges related to generation resource planning as allowed by the lpsc ; 2022 the deferral in 2004 by entergy louisiana of $ 11.4 million related to the voluntary severance program , in accordance with a proposed stipulation entered into with the lpsc staff ; and .
Question: what is the net change in net revenue during 2004 for entergy corporation?


Answer: The answer is:29.5