There are several ways to create Table Calculations in Tableau, including:
- 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 type
- Using the drop-down menu for any active field that is used as a numeric aggregate in the view, select Add Table Calculation, then select the calculation type, and adjust any desired settings
- 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...