contractual obligations fis 2019 long-term contractual obligations generally include its long-term debt , interest on long-term debt , lease payments on certain of its property and equipment and payments for data processing and maintenance . for more descriptive information regarding the company's long-term debt , see note 13 in the notes to consolidated financial statements . the following table summarizes fis 2019 significant contractual obligations and commitments as of december 31 , 2012 ( in millions ) : less than 1-3 3-5 more than total 1 year years years 5 years .

Table:
 | total | less than 1 year | 1-3 years | 3-5 years | more than 5 years
long-term debt | $ 4385.5 | $ 153.9 | $ 757.1 | $ 2274.5 | $ 1200.0
interest ( 1 ) | 1137.6 | 200.4 | 372.9 | 288.8 | 275.5
operating leases | 226.6 | 55.0 | 96.2 | 46.4 | 29.0
data processing and maintenance | 246.7 | 131.7 | 78.9 | 28.4 | 7.7
other contractual obligations ( 2 ) | 100.7 | 18.8 | 52.0 | 10.6 | 19.3
total | $ 6097.1 | $ 559.8 | $ 1357.1 | $ 2648.7 | $ 1531.5
( 1 ) these calculations assume that : ( a ) applicable margins remain constant ; ( b ) all variable rate debt is priced at the one-month libor rate in effect as of december 31 , 2012 ; ( c ) no new hedging transactions are effected ; ( d ) only mandatory debt repayments are made ; and ( e ) no refinancing occurs at debt maturity .
( 2 ) amount includes the payment for labor claims related to fis' former item processing and remittance operations in brazil ( see note 3 to the consolidated financial statements ) and amounts due to the brazilian venture partner .
fis believes that its existing cash balances , cash flows from operations and borrowing programs will provide adequate sources of liquidity and capital resources to meet fis 2019 expected short-term liquidity needs and its long-term needs for the operations of its business , expected capital spending for the next 12 months and the foreseeable future and the satisfaction of these obligations and commitments .
off-balance sheet arrangements fis does not have any off-balance sheet arrangements .
item 7a .
quantitative and qualitative disclosure about market risks market risk we are exposed to market risks primarily from changes in interest rates and foreign currency exchange rates .
we use certain derivative financial instruments , including interest rate swaps and foreign currency forward exchange contracts , to manage interest rate and foreign currency risk .
we do not use derivatives for trading purposes , to generate income or to engage in speculative activity .
interest rate risk in addition to existing cash balances and cash provided by operating activities , we use fixed rate and variable rate debt to finance our operations .
we are exposed to interest rate risk on these debt obligations and related interest rate swaps .
the notes ( as defined in note 13 to the consolidated financial statements ) represent substantially all of our fixed-rate long-term debt obligations .
the carrying value of the notes was $ 1950.0 million as of december 31 , 2012 .
the fair value of the notes was approximately $ 2138.2 million as of december 31 , 2012 .
the potential reduction in fair value of the notes from a hypothetical 10 percent increase in market interest rates would not be material to the overall fair value of the debt .
our floating rate long-term debt obligations principally relate to borrowings under the fis credit agreement ( as also defined in note 13 to the consolidated financial statements ) .
an increase of 100 basis points in the libor rate would increase our annual debt service under the fis credit agreement , after we include the impact of our interest rate swaps , by $ 9.3 million ( based on principal amounts outstanding as of december 31 , 2012 ) .
we performed the foregoing sensitivity analysis based on the principal amount of our floating rate debt as of december 31 , 2012 , less the principal amount of such debt that was then subject to an interest rate swap converting such debt into fixed rate debt .
this sensitivity analysis is based solely on .

Question: what portion of the total contractual obligations are related to long-term debt?
Answer: 71.9%
Calculation: divide(4385.5, 6097.1)