Here's the formula: Real interest rate = nominal interest rate - rate of inflation ... rate of 13.75% and then subtracting a projected annual inflation rate of 6.81%. Mexico also had a high ...

To calculate interest rate, multiply the principal amount of money by the time period involved (weeks, months, years, etc.). Then divide the amount of paid interest from that time period by that ...

The formula for calculating savings account interest uses the initial deposit, the annual interest rate and the years of growth. Compound interest earns the account holder more than simple ...

The formula for simple interest requires your initial principal balance, annual interest rate, and time in years. Say you put a sum of $800 into a savings vehicle with a 5% annual simple interest ...

But if you like a challenge, here we go. Here's the effective interest rate formula: 1 + (nominal interest rate / number of compounding periods)) ^ (number of compounding periods) – 1 Wait!