User have to select the process formula for calculation of process cost. After clicking Qty the dialog below gets opened.

**Standard:** User can select standard frmula from here to calculate process
cost. e.g. for Polish process, user have to mension the Process to be applied on
which side of part. In above example it is based on all sides that is 2 lengths
and 2 widths. And cost to be calculated on Charged size basis.

**Expression:** User can use expression to calculate cost of process by using
above keywords. e. g. PERI is for perimeter.