QUESTION 3 (25 marks) You are given the following cost information: Per unit Historic Current Scrap Contract purchase purchase price value requirements price Product A 2 8 3 20 units Product B 3 12 7 10 units Product C 5 10 0 11 units Product D Unavailable: world-wide shortage. 5 units Product E 20 11 7 See below Additional information: Product A has 10 units in inventory. These units are left over from a previous order and are not used in regular production. Product B has 50 units in inventory. These units are in constant use. Product C is toxic and there are 20 units in inventory. If not used in this contract, they will be disposed of at a flat rate cost of 80 for 1 to 10 units or 100 for 11 to 20 units. Product D is not in inventory and is not available worldwide, however Product E can be used as substitute with further processing costs of 2.50 per unit. Product E is rarely used in the business and there is none in inventory. a) What is the relevant cost of the above order? (8 marks)