Click the Formula button in the Data group. Step 1 Consider the following table with the total number of rows. To do this click inside the last cell in the fourth column click on Layout in the ribbon and then click on Formula at the far right.
On the Layout tab in the Data group click the Formula button.
In Word you can do other calculations in table such as average production and so on. In Word you can do other calculations in table such as average production and so on. In the Formula box check the text between the parentheses to make sure Word includes the cells you want to sum and click OK. If you want to update all fields in the current part of the document press CtrlA to select all.