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

Now we’re ready to add the multiple grand total rows as follows: 1. Right-click the Grand Total cell at the bottom of the PivotTable. 2. Choose Field Settings. 3. In the resulting dialog, click ...

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

The best new tool from Microsoft Excel is undoubtedly the SCAN function. Here's how to use it to calculate running totals. Find the full guide at Spreadsheet Point.