Weighted Average Cost How Method Under Perpetual Inventory System The following units of a particularem were available for sale during the calendar year Jan, 1 Inventory 4.000 units at $40 Apr 19 Sale 2.500 units June 30 Purchase 4.500 units at $44 Sept. 2 5.000 units Now, 15 Purchase 2.000 units $46 The firm uses the weighted average cost method with a perpetual inventory system. Determine the cost of goods sold for each sale and the inventory balance after each sale. Present the data in the form illustrated in Exo S. Schedule of Cost of Goods Sold Weighted Average Cost Flow Method Purchases Cost of Goods Sold Inventory Date Quantity Unit Cost Total Cast Quantity Unit Cost Total Cost Quantity Unit Cost Total Cost Jan. 1 sale Apr 19 June 30 Sept. 2 Nov. 15 Dec 31 Balance