When calculating both the regional material and recycled content material percentages, do you use the subcontractors cost or can they include their markup?

For example, with structural steel, do we use the subcontractors purchase price of the raw steel or the price they are charging us to supply the steel once its been fabricated, etc.? (I understand we don't include the erection cost)

I'm sure there is a simple answer but I couldn't find this covered in the Q&A. By the way, this is an amazing site. Thanks!