BPC §17073: Proof of average overall cost of doing business for any particular inventory period when added to the cost of production of each article or product, as to a producer, or invoice or replacement cost, w

Proof of average overall cost of doing business for any particular inventory period when added to the cost of production of each article or product, as to a producer, or invoice or replacement cost, whichever is lower, of each article or product, as to a distributor, is presumptive evidence of cost of each such article or product involved in any action brought under this chapter.