Creating Calculation Columns in Application Reports
Access the Select Columns form.
Click the Define Calculation button.
On the Define Calculation form, enter a descriptive name in the Calculation Name field.
This name appears on the report as the column heading. Use names such as Total of Account.
Select a calculation type.
Define the operands for the calculation type that you selected, and click Finish.
Use the drop-down list box to select from valid smart field columns.