Discount item price calculation in Unifier Cost Business Process

Hello All,

There is a requirement in cost type Business Process, Company XYZ wants to create Estimation, while creating Estimation record they want to give discount price to Labor,Non Labor,Material for some %.it will vary depends on vendors.

For Example:

In estimation business process upper form contains the Customer Discounts Fields , Labor - 10% , Non labor - 5 % , Material - 10%

will assume cost sheet contains 3 cost codes labor, non labor , material. and detail window has a field Discount (numeric).

when user select cost code type is labor, In detail window Discount field automatically get the value of upper form labor discount