We explain how to fix the issue when Excel is not auto-calculating formulas. Excel is an advanced tool when calculating formulas for statistics.

How to Set Up Auto Calculate in Excel 2010. When you edit the values on your Microsoft Excel worksheet, pressing the "F9" button refreshes the calculation manually.

How to Calculate T-Value From Mean & Standard Deviation in Excel. Calculate t-values in your Microsoft Excel spreadsheet by combining built-in functions with custom formulas. T-values, also known ...

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