Company inventory records for a particular development program show the following at May 31 At May 31, 10 of these programs are on hand Compute cost of goods sold and ending inventory, using each of the following methods. a. Specific unit cost, with five $150 units and five $160 units still on hand at the end. b. Average cost c. First in, first out d. Last in, first out Which method production the highest cost of goods sold? Which method produces the lowest cost of goods sold? What causes the difference in cost of goods sold