On the surface, an interest rate is just a number. How that number applies to debt or equity opens up a world of possibilities. The first consideration is always whether it’s simple interest vs.

“Compound interest is the eighth wonder of the world. He who understands it, earns it … he who doesn’t … pays it.” This is a famous quote commonly attributed to Albert Einstein, but fortunately, you ...

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.

The most powerful force in the world of investing is compound interest. In fact, Albert Einstein once called compound interest the “eighth wonder of the world!” But what is compound interest? Why was ...