Here you can choose how to calculate the Quantity field.
Determine the calculation formula by clicking the AssistButton to the right of the field and select one of the following options:
Blank
Quantity = Quantity per
Length
Quantity = Length * Quantity per
Length * Width
Quantity = Length * Width * Quantity per
Length * Width * Depth
Quantity = Length * Width * Height * Quantity per
Weight
Quantity = Weight * Quantity per