local consumer lending local consumer lending ( lcl ) , which constituted approximately 70% ( 70 % ) of citi holdings by assets as of december 31 , 2010 , includes a portion of citigroup 2019s north american mortgage business , retail partner cards , western european cards and retail banking , citifinancial north america and other local consumer finance businesses globally . the student loan corporation is reported as discontinued operations within the corporate/other segment for the second half of 2010 only . at december 31 , 2010 , lcl had $ 252 billion of assets ( $ 226 billion in north america ) . approximately $ 129 billion of assets in lcl as of december 31 , 2010 consisted of u.s . mortgages in the company 2019s citimortgage and citifinancial operations . the north american assets consist of residential mortgage loans ( first and second mortgages ) , retail partner card loans , personal loans , commercial real estate ( cre ) , and other consumer loans and assets . in millions of dollars 2010 2009 2008 % (  % ) change 2010 vs . 2009 % (  % ) change 2009 vs . 2008 .

2010: net interest revenue: 13831
non-interest revenue: 1995
total revenues net of interest expense: 15826
total operating expenses: 8064
net credit losses: 17040
credit reserve build ( release ): -1771
provision for benefits and claims: 775
provision for unfunded lending commitments: 2014
provisions for credit losses and for benefits and claims: 16044
( loss ) from continuing operations before taxes: -8282
benefits for income taxes: -3289
( loss ) from continuing operations: -4993
net income attributable to noncontrolling interests: 8
net ( loss ): -5001
average assets ( in billions of dollars ): 324
net credit losses as a percentage of average loans: -6.2
2009: net interest revenue: 12995
non-interest revenue: 4770
total revenues net of interest expense: 17765
total operating expenses: 9799
net credit losses: 19185
credit reserve build ( release ): 5799
provision for benefits and claims: 1054
provision for unfunded lending commitments: 2014
provisions for credit losses and for benefits and claims: 26038
( loss ) from continuing operations before taxes: -18072
benefits for income taxes: -7656
( loss ) from continuing operations: -10416
net income attributable to noncontrolling interests: 33
net ( loss ): -10449
average assets ( in billions of dollars ): 351
net credit losses as a percentage of average loans: -6.38
2008: net interest revenue: 17136
non-interest revenue: 6362
total revenues net of interest expense: 23498
total operating expenses: 14238
net credit losses: 13111
credit reserve build ( release ): 8573
provision for benefits and claims: 1192
provision for unfunded lending commitments: 2014
provisions for credit losses and for benefits and claims: 22876
( loss ) from continuing operations before taxes: -13616
benefits for income taxes: -5259
( loss ) from continuing operations: -8357
net income attributable to noncontrolling interests: 12
net ( loss ): -8369
average assets ( in billions of dollars ): 420
net credit losses as a percentage of average loans: -3.8
% (  % ) change 2010 vs . 2009: net interest revenue: -6
non-interest revenue: -58
total revenues net of interest expense: -11
total operating expenses: -18
net credit losses: -11
credit reserve build ( release ): nm
provision for benefits and claims: -26
provision for unfunded lending commitments: 2014
provisions for credit losses and for benefits and claims: -38
( loss ) from continuing operations before taxes: -54
benefits for income taxes: 57
( loss ) from continuing operations: -52
net income attributable to noncontrolling interests: -76
net ( loss ): -52
average assets ( in billions of dollars ): -8
% (  % ) change 2009 vs . 2008: net interest revenue: -24
non-interest revenue: -25
total revenues net of interest expense: -24
total operating expenses: -31
net credit losses: -46
credit reserve build ( release ): -32
provision for benefits and claims: -12
provision for unfunded lending commitments: 2014
provisions for credit losses and for benefits and claims: -14
( loss ) from continuing operations before taxes: -33
benefits for income taxes: -46
( loss ) from continuing operations: -25
net income attributable to noncontrolling interests: nm
net ( loss ): -25
average assets ( in billions of dollars ): -16

nm not meaningful 2010 vs . 2009 revenues , net of interest expense decreased 11% ( 11 % ) from the prior year . net interest revenue increased 6% ( 6 % ) due to the adoption of sfas 166/167 , partially offset by the impact of lower balances due to portfolio run-off and asset sales . non-interest revenue declined 58% ( 58 % ) , primarily due to the absence of the $ 1.1 billion gain on the sale of redecard in the first quarter of 2009 and a higher mortgage repurchase reserve charge . operating expenses decreased 18% ( 18 % ) , primarily due to the impact of divestitures , lower volumes , re-engineering actions and the absence of costs associated with the u.s . government loss-sharing agreement , which was exited in the fourth quarter of 2009 . provisions for credit losses and for benefits and claims decreased 38% ( 38 % ) , reflecting a net $ 1.8 billion credit reserve release in 2010 compared to a $ 5.8 billion build in 2009 . lower net credit losses across most businesses were partially offset by the impact of the adoption of sfas 166/167 . on a comparable basis , net credit losses were lower year-over-year , driven by improvement in u.s . mortgages , international portfolios and retail partner cards . assets declined 21% ( 21 % ) from the prior year , primarily driven by portfolio run-off , higher loan loss reserve balances , and the impact of asset sales and divestitures , partially offset by an increase of $ 41 billion resulting from the adoption of sfas 166/167 . key divestitures in 2010 included the student loan corporation , primerica , auto loans , the canadian mastercard business and u.s . retail sales finance portfolios . 2009 vs . 2008 revenues , net of interest expense decreased 24% ( 24 % ) from the prior year . net interest revenue was 24% ( 24 % ) lower than the prior year , primarily due to lower balances , de-risking of the portfolio , and spread compression . non-interest revenue decreased $ 1.6 billion , mostly driven by the impact of higher credit losses flowing through the securitization trusts , partially offset by the $ 1.1 billion gain on the sale of redecard in the first quarter of 2009 . operating expenses declined 31% ( 31 % ) from the prior year , due to lower volumes and reductions from expense re-engineering actions , and the impact of goodwill write-offs of $ 3.0 billion in the fourth quarter of 2008 , partially offset by higher costs associated with delinquent loans . provisions for credit losses and for benefits and claims increased 14% ( 14 % ) from the prior year , reflecting an increase in net credit losses of $ 6.1 billion , partially offset by lower reserve builds of $ 2.8 billion . higher net credit losses were primarily driven by higher losses of $ 3.6 billion in residential real estate lending , $ 1.0 billion in retail partner cards , and $ 0.7 billion in international . assets decreased $ 57 billion from the prior year , primarily driven by lower originations , wind-down of specific businesses , asset sales , divestitures , write- offs and higher loan loss reserve balances . key divestitures in 2009 included the fi credit card business , italy consumer finance , diners europe , portugal cards , norway consumer and diners club north america. .

Questions:
in 2009, what percentage of the total revenues net of interest expense was due to net interest revenues?
and what was that percentage in the next year, in 2010?

Answers:
73%
87%