This post explains how to calculate Weighted Average in Excel with percentages. In a standard arithmetic average where the sum of values is divided by the number of values, each data value is treated ...

Averaging is easy until you want to dynamically average the last few years on the fly. There are at least two easy ways to accommodate the n requirement. Averaging is easy business in Microsoft Excel.

Overview Excel remains a core tool for data analysts, and a small set of functions can handle most tasks related to lookups, ...