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

If you're planning to have employees log their own time in spreadsheets and submit them as timesheets with a built-in time calculator in Excel, using separate spreadsheets may be the easiest solution.

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.

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.