About variables in calculated fields
Variables act as placeholders for actual numeric values. The variables allow you to build calculated fields and save them without having to enter actual figures until you generate the report. When you preview or print a report containing a variable, you assign a numeric value to each variable that you are using. Sage 100 Contractor substitutes the declared values for the variables and computes the results. You can insert a variable for a date ({D}), number ({N}), or alphanumeric string ({S}).