Weighted Average Cost Flow Method Under Perpetual Inventory System The following units of a particular item were available for sale during the calendar year: Jan. 1 Apr. 19 June 30 Sept. 2 Nov. 15 Inventory Sale 4,000 units at $40 2,500 units Purchase 4,500 units at $44 Sale Purchase 5,000 units 2,000 units at 146 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 formustrated in Exhibit Schedule of Cost of Goods Sold Weighted Average Cost Flow Method. Date Quantity Purchases Unit Cost Total Cost Quantity Jan. 1 Ape 19 June 30 Sept. 2 Nov. 15 Dec. 31 Balances Cost of Goods Sold Inventory Unit Cost Total Cost Quantity Unit Cost Total Cost