Say for example a 12 APR credit card charges you 1 interest per month on a 1000 you charged on the card. Now suppose you lend me 20 for a year at 10 interest but you are also charging me a 3 fee. It consists of multiplying the periodic interest rate by the number of periods in a year in which the rate is applied.
A nnual P ercentage R ate APR is the equivalent interest rate considering all the added costs to a given loan.
The APR would equal the interest rate if there is no additional costs to a given loan. Suppose you lend me 20 for a year at 10 interest. APY does this and also factors in compounding interest that add to your balance month to month. These follow on from introducing APR we usehttp.