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

Excel's GROUPBY function lets you group and aggregate data based on certain fields in your table of data. It also offers arguments that allow you to sort and filter your data, so you can tailor the ...

Sometimes you just want to tell Excel what it is you want your formula to do. It'd be a lot easier if you could just say "sort this data in ascending order and find its average" i ...

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.

At the sheet level, conditional running totals require focused expressions, but an Excel PivotTable requires only a few field swaps. Susan Harkins shows you how.