How to Calculate how long it will take an investment to double in Microsoft Excel
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 693rd installment in their series of digital spreadsheet magic tricks, you'll learn how to calculate how long it will take to double your money using the NPER function and the rule of 72.