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

You can sum a series of numbers in Microsoft Excel manually by typing in a simple formula, or automatically with a tool.

Averaging in Microsoft Excel is easy, until you start excluding specific values. Here are three ways to average a data set when giving special consideration to the highest and lowest values.

Learn how to calculate Average, Minimum and Maximum in Excel. We show you how to use MIN, Max, and AVERAGE Functions in Excel.

Calculate the weighted average of interest rates in Microsoft Excel to compute the most accurate average interest rate among a group of lenders who received different rates.

By adding all of the data in each of your Excel columns and then creating a chart from the totals of each column, you can generate a cumulative chart in Excel 2010. Cumulative charts are useful ...

If you want to display multiple subtotals in your Microsoft Excel PivotTables, learn how to use a hard-to-find setting.