Use the Calculated Value dialog to define formula driven reporting values.
Video: Calculate Values for Schedules and Annotation Text
You access the Calculated Value dialog when creating reporting parameters for tag labels and schedules.
on the Edit Label dialog when editing the tag family.
on the Schedule Properties dialog.
Parameters panel
(Calculated).
Use the Name field to create a unique name for the value. In schedules, this will become the column header title. Schedules also have the option of creating either a Formula or Percentage calculation. Select the best option for the current value.
Formula fields
(Fields) to display and enter the variable fields available for the calculation. For labels, the fields are associated with the category of the element being tagged, while schedules will list the available fields listed in the schedule.
Percentage fields (schedules only)