Hamby corporation is preparing a bid for a special order that would require 780 liters of material w34c. The company already has 640 liters of this raw material in stock that originally cost $8. 30 per liter. Material w34c is used in the company's main product and is replenished on a periodic basis. The resale value of the existing stock of the material is $7. 60 per liter. New stocks of the material can be readily purchased for $8. 35 per liter. What is the relevant cost of the 780 liters of the raw material when deciding how much to bid on the special order?.