special asset pool special asset pool ( sap ) , which constituted approximately 22% ( 22 % ) of citi holdings by assets as of december 31 , 2010 , is a portfolio of securities , loans and other assets that citigroup intends to actively reduce over time through asset sales and portfolio run-off . at december 31 , 2010 , sap had $ 80 billion of assets . sap assets have declined by $ 248 billion , or 76% ( 76 % ) , from peak levels in 2007 reflecting cumulative write-downs , asset sales and portfolio run-off . in millions of dollars 2010 2009 2008 % (  % ) change 2010 vs . 2009 % (  % ) change 2009 vs . 2008 .

Table:
in millions of dollars | 2010 | 2009 | 2008 | % (  % ) change 2010 vs . 2009 | % (  % ) change 2009 vs . 2008
net interest revenue | $ 1219 | $ 2754 | $ 2676 | ( 56 ) % (  % ) | 3% ( 3 % )
non-interest revenue | 1633 | -6014 ( 6014 ) | -42375 ( 42375 ) | nm | 86
revenues net of interest expense | $ 2852 | $ -3260 ( 3260 ) | $ -39699 ( 39699 ) | nm | 92% ( 92 % )
total operating expenses | $ 548 | $ 824 | $ 893 | ( 33 ) % (  % ) | ( 8 ) % (  % )
net credit losses | $ 2013 | $ 5399 | $ 906 | ( 63 ) % (  % ) | nm
provision ( releases ) for unfunded lending commitments | -76 ( 76 ) | 111 | -172 ( 172 ) | nm | nm
credit reserve builds ( releases ) | -1711 ( 1711 ) | -530 ( 530 ) | 2677 | nm | nm
provisions for credit losses and for benefits and claims | $ 226 | $ 4980 | $ 3411 | ( 95 ) % (  % ) | 46% ( 46 % )
income ( loss ) from continuing operations before taxes | $ 2078 | $ -9064 ( 9064 ) | $ -44003 ( 44003 ) | nm | 79% ( 79 % )
income taxes ( benefits ) | 905 | -3695 ( 3695 ) | -16714 ( 16714 ) | nm | 78
net income ( loss ) from continuing operations | $ 1173 | $ -5369 ( 5369 ) | $ -27289 ( 27289 ) | nm | 80% ( 80 % )
net income ( loss ) attributable to noncontrolling interests | 188 | -16 ( 16 ) | -205 ( 205 ) | nm | 92
net income ( loss ) | $ 985 | $ -5353 ( 5353 ) | $ -27084 ( 27084 ) | nm | 80% ( 80 % )
eop assets ( in billions of dollars ) | $ 80 | $ 136 | $ 219 | ( 41 ) % (  % ) | ( 38 ) % (  % )
nm not meaningful 2010 vs .
2009 revenues , net of interest expense increased $ 6.1 billion , primarily due to the improvement of revenue marks in 2010 .
aggregate marks were negative $ 2.6 billion in 2009 as compared to positive marks of $ 3.4 billion in 2010 ( see 201citems impacting sap revenues 201d below ) .
revenue in the current year included positive marks of $ 2.0 billion related to sub-prime related direct exposure , a positive $ 0.5 billion cva related to the monoline insurers , and $ 0.4 billion on private equity positions .
these positive marks were partially offset by negative revenues of $ 0.5 billion on alt-a mortgages and $ 0.4 billion on commercial real estate .
operating expenses decreased 33% ( 33 % ) in 2010 , mainly driven by the absence of the u.s .
government loss-sharing agreement , lower compensation , and lower transaction expenses .
provisions for credit losses and for benefits and claims decreased $ 4.8 billion due to a decrease in net credit losses of $ 3.4 billion and a higher release of loan loss reserves and unfunded lending commitments of $ 1.4 billion .
assets declined 41% ( 41 % ) from the prior year , primarily driven by sales and amortization and prepayments .
asset sales of $ 39 billion for the year of 2010 generated pretax gains of approximately $ 1.3 billion .
2009 vs .
2008 revenues , net of interest expense increased $ 36.4 billion in 2009 , primarily due to the absence of significant negative revenue marks occurring in the prior year .
total negative marks were $ 2.6 billion in 2009 as compared to $ 37.4 billion in 2008 .
revenue in 2009 included positive marks of $ 0.8 billion on subprime-related direct exposures .
these positive revenues were partially offset by negative revenues of $ 1.5 billion on alt-a mortgages , $ 0.8 billion of write-downs on commercial real estate , and a negative $ 1.6 billion cva on the monoline insurers and fair value option liabilities .
revenue was also affected by negative marks on private equity positions and write-downs on highly leveraged finance commitments .
operating expenses decreased 8% ( 8 % ) in 2009 , mainly driven by lower compensation and lower volumes and transaction expenses , partially offset by costs associated with the u.s .
government loss-sharing agreement exited in the fourth quarter of 2009 .
provisions for credit losses and for benefits and claims increased $ 1.6 billion , primarily driven by $ 4.5 billion in increased net credit losses , partially offset by a lower provision for loan losses and unfunded lending commitments of $ 2.9 billion .
assets declined 38% ( 38 % ) versus the prior year , primarily driven by amortization and prepayments , sales , marks and charge-offs. .

Question: what percentage of revenue net of interest expense is due to non-interest revenue in 2010?
Answer: 57%
Calculation: divide(1633, 2852)