jpmorgan chase & co . / 2007 annual report 31 the following section provides a comparative discussion of jpmorgan chase 2019s consolidated results of operations on a reported basis for the three-year period ended december 31 , 2007 . factors that relate primarily to a single business segment are discussed in more detail within that business segment than they are in this consolidated sec- tion . for a discussion of the critical accounting estimates used by the firm that affect the consolidated results of operations , see pages 96 201398 of this annual report . revenue .

Table: year ended december 31 ( in millions ) 2007 2006 2005 investment banking fees $ 6635 $ 5520 $ 4088 principal transactions 9015 10778 8072 lending & deposit-related fees 3938 3468 3389 asset management administration and commissions 14356 11855 9988 securities gains ( losses ) 164 -543 ( 543 ) -1336 ( 1336 ) mortgage fees and related income 2118 591 1054 credit card income 6911 6913 6754 other income 1829 2175 2684 noninterest revenue 44966 40757 34693 net interest income 26406 21242 19555 total net revenue $ 71372 $ 61999 $ 54248

2007 compared with 2006 total net revenue of $ 71.4 billion was up $ 9.4 billion , or 15% ( 15 % ) , from the prior year . higher net interest income , very strong private equity gains , record asset management , administration and commissions revenue , higher mortgage fees and related income and record investment banking fees contributed to the revenue growth . these increases were offset partially by lower trading revenue . investment banking fees grew in 2007 to a level higher than the pre- vious record set in 2006 . record advisory and equity underwriting fees drove the results , partially offset by lower debt underwriting fees . for a further discussion of investment banking fees , which are primarily recorded in ib , see the ib segment results on pages 40 201342 of this annual report . principal transactions revenue consists of trading revenue and private equity gains . trading revenue declined significantly from the 2006 level , primarily due to markdowns in ib of $ 1.4 billion ( net of hedges ) on subprime positions , including subprime cdos , and $ 1.3 billion ( net of fees ) on leveraged lending funded loans and unfunded commitments . also in ib , markdowns in securitized products on nonsubprime mortgages and weak credit trading performance more than offset record revenue in currencies and strong revenue in both rates and equities . equities benefited from strong client activity and record trading results across all products . ib 2019s credit portfolio results increased compared with the prior year , primarily driven by higher revenue from risk management activities . the increase in private equity gains from 2006 reflected a significantly higher level of gains , the classification of certain private equity carried interest as compensation expense and a fair value adjustment in the first quarter of 2007 on nonpublic private equity investments resulting from the adoption of sfas 157 ( 201cfair value measurements 201d ) . for a further discussion of principal transactions revenue , see the ib and corporate segment results on pages 40 201342 and 59 201360 , respectively , and note 6 on page 122 of this annual report . lending & deposit-related fees rose from the 2006 level , driven pri- marily by higher deposit-related fees and the bank of new york transaction . for a further discussion of lending & deposit-related fees , which are mostly recorded in rfs , tss and cb , see the rfs segment results on pages 43 201348 , the tss segment results on pages 54 201355 , and the cb segment results on pages 52 201353 of this annual report . asset management , administration and commissions revenue reached a level higher than the previous record set in 2006 . increased assets under management and higher performance and placement fees in am drove the record results . the 18% ( 18 % ) growth in assets under management from year-end 2006 came from net asset inflows and market appreciation across all segments : institutional , retail , private bank and private client services . tss also contributed to the rise in asset management , administration and commissions revenue , driven by increased product usage by new and existing clients and market appreciation on assets under custody . finally , commissions revenue increased , due mainly to higher brokerage transaction volume ( primarily included within fixed income and equity markets revenue of ib ) , which more than offset the sale of the insurance business by rfs in the third quarter of 2006 and a charge in the first quarter of 2007 resulting from accelerated surrenders of customer annuities . for additional information on these fees and commissions , see the segment discussions for ib on pages 40 201342 , rfs on pages 43 201348 , tss on pages 54 201355 , and am on pages 56 201358 , of this annual report . the favorable variance resulting from securities gains in 2007 compared with securities losses in 2006 was primarily driven by improvements in the results of repositioning of the treasury invest- ment securities portfolio . also contributing to the positive variance was a $ 234 million gain from the sale of mastercard shares . for a fur- ther discussion of securities gains ( losses ) , which are mostly recorded in the firm 2019s treasury business , see the corporate segment discussion on pages 59 201360 of this annual report . consol idated results of operat ions .

Question: what was the percentage change in investment banking fees from 2006 to 2007?
Answer: 20%
Calculation: divide(subtract(6635, 5520), 5520)