John H. answered • 11/27/13

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Barbara,

if the 7.5% is the annual interest rate, then the formula would be the following to find the equivalent rate of interest rate for 60 days:

((0.075 + 1)^(1/(60/360)) - 1) * (60/360) = approx. 7.28%

This is because the 7.28% interest rate is for 60 days, and is compounded six times a year (assuming a 360-day year) to yield 7.5% annually.

-John