verage cost flow method under perpetual inventory system ng units of a particular item were available for sale during the calendar year: Inventory 9,000 units at $50.00 Sale 7,000 units Purchase 8,000 units at $56.50 Sale 8,000 units Purchase 4,000 units at $60.00 es 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 Round your "Unit Cost" answers to two decimal places. Weighted Average Cost Flow Method Purchases Purchases Purchases Cost of Goods Sold Cost of Goods Sold Cost of Goods Sold Inventory Inventory Inventory Quantity Unit Cost Total Cost Quantity Unit Cost Total Cost Quantity Unit Cost Total Cost III Balances