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.

Adding a condition to a simple revenue sheet might spell trouble in Microsoft Excel, but don't worry--a simple conditional function can handle the request.

The article How to calculate conditional subtotals in an Excel revenue sheet uses simple expressions, a function, and a conditional format to display a daily balance in a revenue sheet.