Albert Einstein is reputed to have said, "Compound interest is the eighth wonder of the world. He who understands it, earns it; he who doesn't, pays it."
The Formula
- A = Final Amount (Principal + Interest)
- P = Principal amount (the initial amount you borrow or deposit)
- r = Annual interest rate (in decimal)
- n = Number of times interest is compounded per year
- t = Number of years the amount is deposited or borrowed for