Kuchin Company reports the following for the month of June. Date Explination Units Unit Cost Total Cost June 1 Inventory 120 $5 $600 June 12 Purchase 370 $6 $2,220 June 23 Purchase 500 $7 $3,500 June 30 Inventory 240 a) Computer the cost of the ending inventory and the cost of goods sold under (1) FIFO, (2) LIFO, and (3) average cost. b) Which costing method gives the highest ending inventory? The highest cost of goods sold? Why? c) How do the average-cost values for ending inventory and cost of goods sold relate to ending inventory and cost of goods sold for FIFO and LIFO. d) Explain why the average cost is not $6