62 general mills amounts recorded in accumulated other comprehensive loss unrealized losses from interest rate cash flow hedges recorded in aoci as of may 27 , 2012 , totaled $ 73.6 million after tax . these deferred losses are primarily related to interest rate swaps that we entered into in contemplation of future borrowings and other financ- ing requirements and that are being reclassified into net interest over the lives of the hedged forecasted transac- tions . unrealized losses from foreign currency cash flow hedges recorded in aoci as of may 27 , 2012 , were $ 1.7 million after-tax . the net amount of pre-tax gains and losses in aoci as of may 27 , 2012 , that we expect to be reclassified into net earnings within the next 12 months is $ 14.0 million of expense . credit-risk-related contingent features certain of our derivative instruments contain provisions that require us to maintain an investment grade credit rating on our debt from each of the major credit rat- ing agencies . if our debt were to fall below investment grade , the counterparties to the derivative instruments could request full collateralization on derivative instru- ments in net liability positions . the aggregate fair value of all derivative instruments with credit-risk-related contingent features that were in a liability position on may 27 , 2012 , was $ 19.9 million . we have posted col- lateral of $ 4.3 million in the normal course of business associated with these contracts . if the credit-risk-related contingent features underlying these agreements had been triggered on may 27 , 2012 , we would have been required to post an additional $ 15.6 million of collateral to counterparties . concentrations of credit and counterparty credit risk during fiscal 2012 , wal-mart stores , inc . and its affili- ates ( wal-mart ) accounted for 22 percent of our con- solidated net sales and 30 percent of our net sales in the u.s . retail segment . no other customer accounted for 10 percent or more of our consolidated net sales . wal- mart also represented 6 percent of our net sales in the international segment and 7 percent of our net sales in the bakeries and foodservice segment . as of may 27 , 2012 , wal-mart accounted for 26 percent of our u.s . retail receivables , 5 percent of our international receiv- ables , and 9 percent of our bakeries and foodservice receivables . the five largest customers in our u.s . retail segment accounted for 54 percent of its fiscal 2012 net sales , the five largest customers in our international segment accounted for 26 percent of its fiscal 2012 net sales , and the five largest customers in our bakeries and foodservice segment accounted for 46 percent of its fis- cal 2012 net sales . we enter into interest rate , foreign exchange , and cer- tain commodity and equity derivatives , primarily with a diversified group of highly rated counterparties . we continually monitor our positions and the credit rat- ings of the counterparties involved and , by policy , limit the amount of credit exposure to any one party . these transactions may expose us to potential losses due to the risk of nonperformance by these counterparties ; however , we have not incurred a material loss . we also enter into commodity futures transactions through vari- ous regulated exchanges . the amount of loss due to the credit risk of the coun- terparties , should the counterparties fail to perform according to the terms of the contracts , is $ 19.5 million against which we do not hold collateral . under the terms of master swap agreements , some of our transactions require collateral or other security to support financial instruments subject to threshold levels of exposure and counterparty credit risk . collateral assets are either cash or u.s . treasury instruments and are held in a trust account that we may access if the counterparty defaults . note 8 . debt notes payable the components of notes payable and their respective weighted-average interest rates at the end of the periods were as follows: .

may 27 2012 notes payable: u.s . commercial paper: 412
financial institutions: 114.5
total: 526.5
may 27 2012 weighted- average interest rate: u.s . commercial paper: -0.2
financial institutions: 10
total: -2.4
may 27 2012 notespayable: u.s . commercial paper: 192.5
financial institutions: 118.8
total: 311.3
weighted-averageinterest rate: u.s . commercial paper: -0.2
financial institutions: 11.5
total: -4.5

to ensure availability of funds , we maintain bank credit lines sufficient to cover our outstanding short- term borrowings . commercial paper is a continuing source of short-term financing . we have commercial paper programs available to us in the united states and europe . in april 2012 , we entered into fee-paid commit- ted credit lines , consisting of a $ 1.0 billion facility sched- uled to expire in april 2015 and a $ 1.7 billion facility .

Questions:
for the year ended on may 27, 2012, what was the total interest expense, in millions?
and as of that same date, what was the amount of notes payable related to u.s . commercial paper?
what was the full total of notes payable?
how much, then, in relation to this total did that amount represent?

Answers:
12.6
412.0
526.5
78.3%