If you have a savings account, you might want to know how much you'll earn in interest for parking your cash there. Fortunately, calculating interest on a savings account is not as tough as you ...

Before you can calculate finance charges, you need to decide on an interest rate. Rates are expressed in annual terms. Most states have laws setting the maximum interest rate that a merchant can ...

Lora is a freelance contributor to Newsweek’s Vault team, specializing in articles on saving, investing, borrowing and making money. Lora has a master’s degree in library science, and is based in ...