Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Compound interest is interest that's calculated ...

The formula for simple interest in Excel is =<cell with principal value>*<cell with rate of interest>*<cell with time period>. If these three values are mentioned in the A1, B1, and C1 cells, your ...

Open Microsoft Excel. Enter the loan's interest rate as a percentage in cell A1 and press "Enter." For example, if the loan had a 7.5 percent interest rate, you would enter "7.5%." ...