potter Corporation reported the following for June in its periodic inventory records. Date Description Units Unit Cost Total Cost June 1 Beginning 20 $ 12.00 $ 240.00 11 Purchase 60 13.00 780.00 24 Purchase 40 15.00 600.00 30 Ending 44 Required: Calculate the cost of ending inventory and the cost of goods sold under the (a) FIFO, (b) LIFO, and (c) weighted average cost methods