Financial report context:
notes to consolidated financial statements fifth third bancorp 81 vii held by the trust vii bear a fixed rate of interest of 8.875% ( 8.875 % ) until may 15 , 2058 . thereafter , the notes pay a floating rate at three-month libor plus 500 bp . the bancorp entered into an interest rate swap to convert $ 275 million of the fixed-rate debt into floating . at december 31 , 2008 , the rate paid on the swap was 6.05% ( 6.05 % ) . the jsn vii may be redeemed at the option of the bancorp on or after may 15 , 2013 , or in certain other limited circumstances , at a redemption price of 100% ( 100 % ) of the principal amount plus accrued but unpaid interest . all redemptions are subject to certain conditions and generally require approval by the federal reserve board . subsidiary long-term borrowings the senior fixed-rate bank notes due from 2009 to 2019 are the obligations of a subsidiary bank . the maturities of the face value of the senior fixed-rate bank notes are as follows : $ 36 million in 2009 , $ 800 million in 2010 and $ 275 million in 2019 . the bancorp entered into interest rate swaps to convert $ 1.1 billion of the fixed-rate debt into floating rates . at december 31 , 2008 , the rates paid on these swaps were 2.19% ( 2.19 % ) on $ 800 million and 2.20% ( 2.20 % ) on $ 275 million . in august 2008 , $ 500 million of senior fixed-rate bank notes issued in july of 2003 matured and were paid . these long-term bank notes were issued to third-party investors at a fixed rate of 3.375% ( 3.375 % ) . the senior floating-rate bank notes due in 2013 are the obligations of a subsidiary bank . the notes pay a floating rate at three-month libor plus 11 bp . the senior extendable notes consist of $ 797 million that currently pay interest at three-month libor plus 4 bp and $ 400 million that pay at the federal funds open rate plus 12 bp . the subordinated fixed-rate bank notes due in 2015 are the obligations of a subsidiary bank . the bancorp entered into interest rate swaps to convert the fixed-rate debt into floating rate . at december 31 , 2008 , the weighted-average rate paid on the swaps was 3.29% ( 3.29 % ) . the junior subordinated floating-rate bank notes due in 2032 and 2033 were assumed by a bancorp subsidiary as part of the acquisition of crown in november 2007 . two of the notes pay floating at three-month libor plus 310 and 325 bp . the third note pays floating at six-month libor plus 370 bp . the three-month libor plus 290 bp and the three-month libor plus 279 bp junior subordinated debentures due in 2033 and 2034 , respectively , were assumed by a subsidiary of the bancorp in connection with the acquisition of first national bank . the obligations were issued to fnb statutory trusts i and ii , respectively . the junior subordinated floating-rate bank notes due in 2035 were assumed by a bancorp subsidiary as part of the acquisition of first charter in may 2008 . the obligations were issued to first charter capital trust i and ii , respectively . the notes of first charter capital trust i and ii pay floating at three-month libor plus 169 bp and 142 bp , respectively . the bancorp has fully and unconditionally guaranteed all obligations under the acquired trust preferred securities . at december 31 , 2008 , fhlb advances have rates ranging from 0% ( 0 % ) to 8.34% ( 8.34 % ) , with interest payable monthly . the advances are secured by certain residential mortgage loans and securities totaling $ 8.6 billion . at december 31 , 2008 , $ 2.5 billion of fhlb advances are floating rate . the bancorp has interest rate caps , with a notional of $ 1.5 billion , held against its fhlb advance borrowings . the $ 3.6 billion in advances mature as follows : $ 1.5 billion in 2009 , $ 1 million in 2010 , $ 2 million in 2011 , $ 1 billion in 2012 and $ 1.1 billion in 2013 and thereafter . medium-term senior notes and subordinated bank notes with maturities ranging from one year to 30 years can be issued by two subsidiary banks , of which $ 3.8 billion was outstanding at december 31 , 2008 with $ 16.2 billion available for future issuance . there were no other medium-term senior notes outstanding on either of the two subsidiary banks as of december 31 , 2008 . 15 . commitments , contingent liabilities and guarantees the bancorp , in the normal course of business , enters into financial instruments and various agreements to meet the financing needs of its customers . the bancorp also enters into certain transactions and agreements to manage its interest rate and prepayment risks , provide funding , equipment and locations for its operations and invest in its communities . these instruments and agreements involve , to varying degrees , elements of credit risk , counterparty risk and market risk in excess of the amounts recognized in the bancorp 2019s consolidated balance sheets . creditworthiness for all instruments and agreements is evaluated on a case-by-case basis in accordance with the bancorp 2019s credit policies . the bancorp 2019s significant commitments , contingent liabilities and guarantees in excess of the amounts recognized in the consolidated balance sheets are summarized as follows : commitments the bancorp has certain commitments to make future payments under contracts . a summary of significant commitments at december 31: .

Financial table:
( $ in millions ): commitments to extend credit; 2008: $ 49470; 2007: 49788
( $ in millions ): letters of credit ( including standby letters of credit ); 2008: 8951; 2007: 8522
( $ in millions ): forward contracts to sell mortgage loans; 2008: 3235; 2007: 1511
( $ in millions ): noncancelable lease obligations; 2008: 937; 2007: 734
( $ in millions ): purchase obligations; 2008: 81; 2007: 52
( $ in millions ): capital expenditures; 2008: 68; 2007: 94

Additional report context:
commitments to extend credit are agreements to lend , typically having fixed expiration dates or other termination clauses that may require payment of a fee . since many of the commitments to extend credit may expire without being drawn upon , the total commitment amounts do not necessarily represent future cash flow requirements . the bancorp is exposed to credit risk in the event of nonperformance for the amount of the contract . fixed-rate commitments are also subject to market risk resulting from fluctuations in interest rates and the bancorp 2019s exposure is limited to the replacement value of those commitments . as of december 31 , 2008 and 2007 , the bancorp had a reserve for unfunded commitments totaling $ 195 million and $ 95 million , respectively , included in other liabilities in the consolidated balance sheets . standby and commercial letters of credit are conditional commitments issued to guarantee the performance of a customer to a third party . at december 31 , 2008 , approximately $ 3.3 billion of letters of credit expire within one year ( including $ 57 million issued on behalf of commercial customers to facilitate trade payments in dollars and foreign currencies ) , $ 5.3 billion expire between one to five years and $ 0.4 billion expire thereafter . standby letters of credit are considered guarantees in accordance with fasb interpretation no . 45 , 201cguarantor 2019s accounting and disclosure requirements for guarantees , including indirect guarantees of indebtedness of others 201d ( fin 45 ) . at december 31 , 2008 , the reserve related to these standby letters of credit was $ 3 million . approximately 66% ( 66 % ) and 70% ( 70 % ) of the total standby letters of credit were secured as of december 31 , 2008 and 2007 , respectively . in the event of nonperformance by the customers , the bancorp has rights to the underlying collateral , which can include commercial real estate , physical plant and property , inventory , receivables , cash and marketable securities . the bancorp monitors the credit risk associated with the standby letters of credit using the same dual risk rating system utilized for .

Question: what is the percentage change in the balance of noncancelable lease obligations from 2007 to 2008?
Answer: 734