On the RFx response screen, the total value is coming via 01CT access sequence.
Actual price calculation with condition is coming via VMC which is JAVA based tool
So when the supplier is entering the price with conditions, after clicking submit button it is getting stored in the database
On the other hand when the purchaser is opting for response comparison system is calculating the net price via VMC.
On response screen the total value is just the Base price * Quantity
So in case you need to show the net value(inclusive of all conditions) on the respose screen, you need to calculate via doc_change_badi, developing the exact logic of calculation schema being configured.