Use a formula-based pricing element to apply an override to the list price and use that to populate the list price for further calculations like total, discount, net prices, etc.

Use a formula based pricing element to apply the override to the unit price and use that to populate the list price for further calculations like total, discount, net prices, etc.

Use a formula-based pricing element to apply an override to the list price value and populate a line item custom field for further calculations like total, discount, net prices, etc