A calculated column is a column of the report with the value calculated during the execution of the report.
The calculated column can be created in the View Settings dialog:
Calculated column settings
After the creation of the calculated column, the user will see the settings window:
(1) The title of the column.
(2) Type of the column that defines the format in the pivot table.
(3) The expression of the computed column.
(4) The column name selector to be added to the expression.