If you invest 1 million yen at an annual interest rate of 2% for 2 years, how much will it be?1. 1.04 million yen2. 1,040,400 ...

CNBC Select defines compound interest, how it works and ways to take advantage of it if you're looking for a new credit card ...

One of the upsides to keeping your money in a bank account is the chance to earn compound interest — you earn interest on both the funds you deposit in an account and on the interest that money earns.

Compound interest is how your money makes money -- and it can make you rich.

Compound interest can help turbocharge your savings and investments, or it can quickly lead to an unruly balance, keeping you stuck in a cycle of debt. Its magic can help you earn more — or owe more.