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.

Interest is the amount of money you must pay to borrow money in addition to the loan's principal. It's also the amount you are paid over time when you deposit money in a savings account or certificate ...

Compound interest is the interest earned on money that has already earned interest. Compound interest helps your money grow faster, with no additional investment on your part. Many or all of the ...