In Microsoft Excel your spreadsheet should allow the inclusion of new data to a series of data points and have the average updated to reflect the new information.

How to Do Averages With Percentages in Excel. Averages are typically computed as the sum of values divided by the number of data points. However, averages are also calculable from percentages.

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

How to Calculate Weighted Average Using Excel To calculate this weighted average, first input the two values for the number of shares outstanding into adjacent cells. In our example, during ...

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.

Whether you prefer Excel, Numbers, or Google Docs, here's what you, the savvy spreadsheet user, should know how to do.