Weighted average cost flow method under perpetual inventory system The following units of a particular item were avallable for sale during the calendar year: 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 Exhibit 5. Round your "Unit Cost" answers to two decimal places. stem. Determine the cost of goods sold for each sale and n Exhibit 5. Round your "Unit Cost" answers to two