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how to calculate simple interest when rate is unknown. The mathematical equation for calculating simple interest is However banks typically charge compound interest on loans. How to calculate your interest To begin your calculation enter your starting amount along with the annual interest rate and the start date assuming it isnt today.
Just fill in the numbers for your loan or savings. The formula we use to calculate simple interest is latexIPrtlatex. If you put money into a bank or building society they will pay you interest on this money.
Calculate rate of interest in percent R r 100.
Simple Interest Formulas and Calculations. Calculating Interest Rates 1. Simple Interest Formulas and Calculations. Convert the interest rate to a percentage by multiplying it by 100.