Mathematically how do you find interest?

Answer:
To calculate interest, you must first know the principle amount, the time of the term of the loan or investment, and the rate or percentage at which the principle amount grows. Once you have all three components, you then multiple the principle by the rate and then by the time.
First answer by Answers Publishing Network. Last edit by Answers Publishing Network. Contributor trust: 99 [recommend contributor recommended]. Question popularity: 2 [recommend question].