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 .

In millions of dollars
2010
2009
2008
% Change 2010 vs. 2009
% Change 2009 vs. 2008
Net interest revenue
$1,219
$2,754
$2,676
(56)%
3%
Non-interest revenue
1,633
(6,014)
(42,375)
NM
86
Revenues, net of interest expense
$2,852
$(3,260)
$(39,699)
NM
92%
Total operating expenses
$548
$824
$893
(33)%
(8)%
Net credit losses
$2,013
$5,399
$906
(63)%
NM
Provision (releases) for unfunded lending commitments
(76)
111
(172)
NM
NM
Credit reserve builds (releases)
(1,711)
(530)
2,677
NM
NM
Provisions for credit losses and for benefits and claims
$226
$4,980
$3,411
(95)%
46%
Income (loss) from continuing operations before taxes
$2,078
$(9,064)
$(44,003)
NM
79%
Income taxes (benefits)
905
(3,695)
(16,714)
NM
78
Net income (loss) from continuing operations
$1,173
$(5,369)
$(27,289)
NM
80%
Net income (loss) attributable to noncontrolling interests
188
(16)
(205)
NM
92
Net income (loss)
$985
$(5,353)
$(27,084)
NM
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: Analyse this data from a financial earnings document. what percentage of revenue net of interest expense is due to net interest revenue in 2010?
Choices:
-0.42742
0.07019
0.42742
2.33962
-2.3
Correct choice index: 2