You can use mathematical equations to change numeric data such as quantities, costs, and durations. Use addition, subtraction, multiplication, and division to calculate new values. Click the Operator column to list the various operator symbols. Join text strings with an ampersand (&) symbol.
Arithmetic operators can link two data items, a data item and a number, or two numbers that you enter. Use arithmetic operators in Then and Else statements to calculate new values for a data item. Arithmetic operations are not used in If: statements; only comparisons.