Excel offers several easy ways to calculate expiry dates based on days, months, or business rules. In this post, we’ll explore different ways to automate expiry date calculations in Excel.

Percentages aren't always easy to calculate, but one of the best tools in Excel's toolbox is calculating percentages for you. Here's how to do it.

Learn how to calculate Weighted Average in Excel with percentages using the SUM function and the SUMPRODUCT function.

How to Calculate Fluctuations in Excel. Calculating data fluctuations-- also called variance -- is a multi-step process that requires total accuracy. Excel 2010 provides two basic formulas for ...

How to Calculate Hours in Excel Excluding Weekends. An Excel spreadsheet can become an indispensable tool for your business when you harness its power for keeping records and doing computations.