notes to consolidated financial statements note 20 . regulation and capital adequacy the federal reserve board is the primary regulator of group inc. , a bank holding company under the bank holding company act of 1956 ( bhc act ) and a financial holding company under amendments to the bhc act effected by the u.s . gramm-leach-bliley act of 1999 . as a bank holding company , the firm is subject to consolidated regulatory capital requirements that are computed in accordance with the federal reserve board 2019s risk-based capital requirements ( which are based on the 2018basel 1 2019 capital accord of the basel committee ) . these capital requirements are expressed as capital ratios that compare measures of capital to risk-weighted assets ( rwas ) . the firm 2019s u.s . bank depository institution subsidiaries , including gs bank usa , are subject to similar capital requirements . under the federal reserve board 2019s capital adequacy requirements and the regulatory framework for prompt corrective action that is applicable to gs bank usa , the firm and its u.s . bank depository institution subsidiaries must meet specific capital requirements that involve quantitative measures of assets , liabilities and certain off- balance-sheet items as calculated under regulatory reporting practices . the firm and its u.s . bank depository institution subsidiaries 2019 capital amounts , as well as gs bank usa 2019s prompt corrective action classification , are also subject to qualitative judgments by the regulators about components , risk weightings and other factors . many of the firm 2019s subsidiaries , including gs&co . and the firm 2019s other broker-dealer subsidiaries , are subject to separate regulation and capital requirements as described below . group inc . federal reserve board regulations require bank holding companies to maintain a minimum tier 1 capital ratio of 4% ( 4 % ) and a minimum total capital ratio of 8% ( 8 % ) . the required minimum tier 1 capital ratio and total capital ratio in order to be considered a 201cwell-capitalized 201d bank holding company under the federal reserve board guidelines are 6% ( 6 % ) and 10% ( 10 % ) , respectively . bank holding companies may be expected to maintain ratios well above the minimum levels , depending on their particular condition , risk profile and growth plans . the minimum tier 1 leverage ratio is 3% ( 3 % ) for bank holding companies that have received the highest supervisory rating under federal reserve board guidelines or that have implemented the federal reserve board 2019s risk-based capital measure for market risk . other bank holding companies must have a minimum tier 1 leverage ratio of 4% ( 4 % ) . the table below presents information regarding group inc . 2019s regulatory capital ratios. .
what was the change in tier 1 capital in millions between 2011 and 2012?
rwas under the federal reserve board 2019s risk-based capital requirements are calculated based on the amount of market risk and credit risk . rwas for market risk are determined by reference to the firm 2019s value-at-risk ( var ) model , supplemented by other measures to capture risks not reflected in the firm 2019s var model . credit risk for on- balance sheet assets is based on the balance sheet value . for off-balance sheet exposures , including otc derivatives and commitments , a credit equivalent amount is calculated based on the notional amount of each trade . all such assets and exposures are then assigned a risk weight depending on , among other things , whether the counterparty is a sovereign , bank or a qualifying securities firm or other entity ( or if collateral is held , depending on the nature of the collateral ) . tier 1 leverage ratio is defined as tier 1 capital under basel 1 divided by average adjusted total assets ( which includes adjustments for disallowed goodwill and intangible assets , and the carrying value of equity investments in non-financial companies that are subject to deductions from tier 1 capital ) . 184 goldman sachs 2012 annual report .