MM-Purchasing pricing routing to populate the KBETR

Hi All,

I have the requirement to populate the Interest charge in Inter-company Stock transfer pricing condition. Condition is delivery cost condition. Amount needs to be calculated based on Yearly Interest rate maintained as condition record for Interest rate.

Formula for calculation is (Purchase Price × （α% +1.0) ×X Days/ 360) here α% is yearly interest rate.

Requirement is to populate the calculated vale as Condition rate (KBETR) while creating the Purchase order. Please guide how to meet this requirement. Whether it will be Condition value formula or Condition base value formula.

Thanks