Briefly explain the term, Annual Percentage Yield (A.P.Y.)

The Annual Percentage Yield (APY) is the rate actually earned or paid in one year, taking into account the effect of compounding interest. Compounding interest includes the interest earned on both the principal amount and any previously accrued interest. APY is commonly used for savings accounts, fixed deposits, and other investment products to help investors compare returns. The formula for APY is: APY = (1 + r/n)^n - 1 Where: r is the nominal interest rate (annual rate). n is the number of compounding periods per year. A higher APY indicates better returns, assuming all other factors are equal. For example, a 1% per month rate has an A.P.Y. of 12.68% (1.01^12-1). Thus, APY is the effective or true annual rate of return.