Subtraction is the easiest way to count days between two dates in Excel. You can use the arithmetic operator – (minus sign) to subtract one date from another to find the number of days between them.

Have you ever found yourself drowning in a sea of invoices, struggling to keep track of due dates, payments, and customer details? Managing invoices manually isn’t just tedious—it’s a recipe for ...

Last week I explained how Excel uses its own, unique system of serial numbers to calculate dates and times. That piece covered nine Date & Time functions: NETWORKDAYS(), DATEVALUE(), NOW(), DAY(), ...

Q. I have prepared projections for a proposed project, and I want to calculate the internal rate of return. Instead of using Excel’s IRR function, should I use simple math formulas so others can ...