Inventory Costing Methods. Periodic Method The Shiloh Company uses the periodic inventory system for its merchandise inventory. The June 1 Inventory for one of the terms in the merchandise Inventory consisted of 60 units with a unit cost of $120, Transactions for this item during June were as follows: Puhased to its 5130 per old 50 units 5770 35 went 205175 Required Calculate the cost of goods sold and the ending inventory cost for the month of June using the weighted average cost method. Round the cost per to 3 decimal places and round your final answers to the nearest dollar