There are several ways to create table calculations in Tableau:
- Using the drop-down menu for any active field, used as a numeric aggregate in the view, select Quick Table Calculation and then the desired calculation
- Using the drop-down menu for any active field, used as a numeric aggregate in the view, select Add Table Calculation and then select the calculation type and adjust the desired settings, if any
- Create a calculated field and use one or more table calculation functions to write your own custom table calculations
The first two options create a quick table calculation, which can be edited or removed using the drop-down menu on the field and selecting Edit Table Calculation or Clear Table Calculation ...