Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Suzanne is a content marketer, writer, and ...

Loans have an interest rate, monthly payment amount and number of payments specified in the loan documents. Interest-only loans don't apply any of the payment to the principal. At the end of the loan, ...

Calculating the interest earned in your checking or savings accounts during a bank statement period can help you prepare an accurate budget. You don't necessarily need to use a special checking ...

E. Napoletano is a former registered financial advisor and award-winning author and journalist. With more than 15 years of experience crafting content about all aspects of personal finance, Michael ...

Calculating Simple Interest is an excellent method to judge your savings in advance. However, calculating it for various interests and principal sums could be complex. This is where Excel comes to ...

A promissory note is a financial and legal instrument through which one party agrees (or promises) to pay another party a sum of money that's comprised of two pieces: principal and interest. These ...

What Is a Payback Period? The payback period is the amount of time (usually measured in years) it takes to recover an initial investment outlay—as measured in after-tax cash flows. For example, if a ...