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

How to Calculate Fluctuations in Excel. Calculating data fluctuations-- also called variance -- is a multi-step process that requires total accuracy. Excel 2010 provides two basic formulas for ...

If you are looking forward towards calculating the Standard Deviation and Standard Error of the Mean in Excel, please check this article.

In Microsoft Excel, common size financial statements compare cells against the balance total to determine what percent those figures have increased or decreased.