The bank gives you a 12 interest rate and compounds the interest every 2 months. The Rule of 72 is another way to make estimates about compound interest quickly. Roi The annual rate of interest for the amount borrowed or deposited.
Compound It Compound Frequency Annually Semiannually Monthly Daily.
Present Value Principal Amount. In the world of finance the term Principal is the initial deposit loan or investment. A P 1 r n n t A 1 000 000 1 06 12 12 5 A 1 000 000 1 0005 12 5 A 1 000 000 1005 60 A 1 348 85015. Use the future value of an account the principal the interest rate and the number of compounding periods yearly to find how many years the money has been.