Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Source: Flickr user Dafne Cholet. Simple interest refers to interest that's calculated solely based on the principal, and not any interest that has already accrued. The general formula for computing ...

Simple interest calculates earnings or payments based solely on the initial principal, while compound interest grows by calculating interest on both the principal and the accumulated interest over ...

Savings accounts will earn interest on the amount of money deposited into the account. The formula to calculate simple interest in a savings account is the deposit amount times the annual interest ...