Variables are used to represent values that change from one situation to the next. They act as on-screen prompts to request either a numeric or YES/NO response. Your entry for a variable is used by formulas to calculate takeoff quantities. A variable is used in the following ways:

• By formulas to calculate takeoff quantities. Example
• By formula tables to return the correct values based on the variables entered at takeoff. Example
• By items tables to return the appropriate item to an assembly during takeoff. Example