The formula for calculating simple interest is Principal Rate Time. I Interest Amount. Calculate Interest solve for I.
I Interest Amount.
12 annual interest calculated after a 6-month time period. This can be determined by multiplying the 1000 original balance times 1 10 3 or times 130. The Formula for simple interest helps you find the interest amount if the principal amount rate of interest and time periods are given. A Total Accrued Amount principal interest P Principal Amount.