Years at a given interest rate. It shows the snowball effect of continuous reinvesting of gains as opposed to cashing out which leads to exponential growth on the inital desposit. As you move from year to year the principal amount continues to grow.
A n is the amount after n years future value.
If youre curious about compound interest and how it works good for you youre on the right track. Log into your account. The formula used in the compound interest calculator is A P 1rnnt A the future value of the investment P the principal investment amount. Determine how much your money can grow using the power of compound interest.