How to Insert the Sum Formula in a Word Table

1. Click in the cell where you want to display the total of the numbers.
2. Click the "Table Tools Layout" tab.
3. Click "Formula" in the Data grouping.
4. Enter your formula. To tally the numbers in the column above the formula, for example, you would type: =SUM(ABOVE). You can replace "Above" with "Below," "Left" or "Right," depending on the location of the numbers you're adding.
5. Choose the number format you want to use and click "OK." You should see the sum of the numbers in the cell you specified.