we recorded liabilities for certain litigation settlements in prior periods . total liabilities for litigation settlements changed from december 31 , 2006 , as follows : ( in millions ) .

$ 477: provision for litigation settlements ( note 20 ): 3
interest accretion on u.s . merchant lawsuit: 33
payments: -114
balance as of december 31 2007: 404
provision for discover settlement: 863
provision for american express settlement: 1649
provision for other litigation settlements: 6
interest accretion on american express settlement: 44
payments on american express settlement: -300
payments on discover settlement: -863
payment on u.s . merchant lawsuit: -100
other payments and accretion: -1
balance as of december 31 2008: 1736

* note that table may not sum due to rounding . contribution expense 2014foundation in may 2006 , in conjunction with our initial public offering ( 201cipo 201d ) , we issued 13496933 shares of our class a common stock as a donation to the foundation that is incorporated in canada and controlled by directors who are independent of us and our customers . the foundation builds on mastercard 2019s existing charitable giving commitments by continuing to support programs and initiatives that help children and youth to access education , understand and utilize technology , and develop the skills necessary to succeed in a diverse and global work force . the vision of the foundation is to make the economy work for everybody by advancing innovative programs in areas of microfinance and youth education . in connection with the donation of the class a common stock , we recorded an expense of $ 395 million which was equal to the aggregate value of the shares we donated . in both 2007 and 2006 , we recorded expenses of $ 20 million for cash donations we made to the foundation , completing our intention , announced at the time of the ipo , to donate approximately $ 40 million in cash to the foundation in support of its operating expenses and charitable disbursements for the first four years of its operations . we may make additional cash contributions to the foundation in the future . the cash and stock donations to the foundation are generally not deductible by mastercard for tax purposes . as a result of this difference between the financial statement and tax treatments of the donations , our effective income tax rate for the year ended december 31 , 2006 is significantly higher than our effective income tax rates for 2007 and 2008 . depreciation and amortization depreciation and amortization expenses increased $ 14 million in 2008 and decreased $ 2 million in 2007 . the increase in depreciation and amortization expense in 2008 is primarily due to increased investments in leasehold and building improvements , data center equipment and capitalized software . the decrease in depreciation and amortization expense in 2007 was primarily related to certain assets becoming fully depreciated . depreciation and amortization will increase as we continue to invest in leasehold and building improvements , data center equipment and capitalized software. .

Questions:
what is the balance of total liabilities for litigation settlements in 2008?
what about in 2007?
what is the net change?
what about the net change during 2007?

Answers:
1736
404
1332
-73