Simple Interest:Simple interest is a method of calculating the interest earned on an investment or loan, where the interest is calculated based on the principal amount and the interest rate, without compounding over time.
Compound Interest:Compound interest is the interest earned on interest, where the interest earned in each period is added to the principal, and the total amount earns interest in the next period.
Doubling Time: Doubling time is the amount of time it takes for an investment or account balance to double in value, given a specific interest rate.