Weighted-average under periodic inventory procedure the weighted-average method of inventory costing is a income of costing ending inventory using a weighted-average unit cost. Companies most frequently use the weighted-average method to determine a cost for units that are basically the same such like identical games in a toy store or identical electrical tools in a hardware store. Ever Since the units are alike firms can assign the same unit cost to them. In periodic inventory procedure a company conclude the average cost at the end of the accounting period by dividing the total units purchased plus those in beginning inventory into total cost of goods available for sale. The ending inventory is carrying out at this per unit cost. To see how a company utilizes the weighted-average method to determine inventory costs using periodic inventory procedure observe Exhibit 55. Note that we calculate weighted-average cost per unit by dividing the cost of units available for sale USD 690 by the total number of units available for sale 80. Therefore the weighted-average cost per unit is USD 8.625 meaning that every unit sold or remaining in inventory is valued at USD 8.625.