PO Condition type to be included in the total amount of PO
I have a PO conditiont type configured with the ff. attributes:
1. Condition Class is Discount or surcharge.
2. Calculation type is percentage.
3. Cond. category is delivery costs.
I want to include the additional cost of this condition in the total amount of the PO. How will I configure the condition type to behave this way?