Calo *E6-16 Hawk Company reports the following for the month of June. goo flos vel (S Date June 1 12 23 30 Explanation Inventory Purchase Purchase Inventory Units 250 325 475 130 Unit Cost $7 8 9 Total Cost $1,750 2.600 4,275 Instructions (a) Calculate the cost of the ending inventory and the cost of goods sold for each cost flow assumption, using a perpetual inventory system. Assume a sale of 425 units occurred on June 15 for a selling price of $12 and a sale of 495 units on June 27 for $13. Round to the nearest dollar for inventory totals. (b) How do the results differ from E6-6B and E6-8B? c) Why is the average unit cost not $8 [($7 + $8 + $9) + 3 = $8]