Weighted Average Cost Flow Method Under Perpetual Inventory System The following units of a particular item were available for sale during the calendar year: The firm uses the weighted average cost method with a perpetual inventory system. Determine the cost of merchandise sold for each sale and the inventory balance after each sale. Present the data in the form illustrated in Exhibit 5 . Round unit cost to two decimal places, if necessary. Wrated in Exhitit 5. Heund unit cost fo two decimat places, if necessarri