pre_text: mastercard incorporated notes to consolidated financial statements 2014 ( continued ) ( in thousands , except percent and per share data ) on june 24 , 2008 , mastercard entered into a settlement agreement ( the 201camerican express settlement 201d ) with american express company ( 201camerican express 201d ) relating to the u.s . federal antitrust litigation between mastercard and american express . the american express settlement ended all existing litigation between mastercard and american express . under the terms of the american express settlement , mastercard is obligated to make 12 quarterly payments of up to $ 150000 per quarter beginning in the third quarter of 2008 . mastercard 2019s maximum nominal payments will total $ 1800000 . the amount of each quarterly payment is contingent on the performance of american express 2019s u.s . global network services business . the quarterly payments will be in an amount equal to 15% ( 15 % ) of american express 2019s u.s . global network services billings during the quarter , up to a maximum of $ 150000 per quarter . if , however , the payment for any quarter is less than $ 150000 , the maximum payment for subsequent quarters will be increased by the difference between $ 150000 and the lesser amount that was paid in any quarter in which there was a shortfall . mastercard assumes american express will achieve these financial hurdles . mastercard recorded the present value of $ 1800000 , at a 5.75% ( 5.75 % ) discount rate , or $ 1649345 for the year ended december 31 , 2008 . in 2003 , mastercard entered into a settlement agreement ( the 201cu.s . merchant lawsuit settlement 201d ) related to the u.s . merchant lawsuit described under the caption 201cu.s . merchant and consumer litigations 201d in note 20 ( legal and regulatory proceedings ) and contract disputes with certain customers . under the terms of the u.s . merchant lawsuit settlement , the company was required to pay $ 125000 in 2003 and $ 100000 annually each december from 2004 through 2012 . in addition , in 2003 , several other lawsuits were initiated by merchants who opted not to participate in the plaintiff class in the u.s . merchant lawsuit . the 201copt-out 201d merchant lawsuits were not covered by the terms of the u.s . merchant lawsuit settlement and all have been individually settled . we recorded liabilities for certain litigation settlements in prior periods . total liabilities for litigation settlements changed from december 31 , 2006 , as follows: .
post_text: see note 20 ( legal and regulatory proceedings ) for additional discussion regarding the company 2019s legal proceedings. .
table: Balance as of December 31, 2006 $476,915
table: Provision for litigation settlements (Note 20) 3,400
table: Interest accretion on U.S. Merchant Lawsuit 38,046
table: Payments (113,925)
table: Balance as of December 31, 2007 404,436
table: Provision for Discover Settlement 862,500
table: Provision for American Express Settlement 1,649,345
table: Provision for other litigation settlements 6,000
table: Interest accretion on U.S. Merchant Lawsuit Settlement 32,879
table: Interest accretion on American Express Settlement 44,300
table: Payments on American Express Settlement (300,000)
table: Payments on Discover Settlement (862,500)
table: Payment on U.S. Merchant Lawsuit Settlement (100,000)
table: Other payments and accretion (662)
table: Balance as of December 31, 2008 $1,736,298
question: Analyse this data from a financial earnings document. what is the percentage change in total liabilities for litigation settlements from 2006 to 2007?