INVENTORY VALUATION METHODS-PERIODIC INVENTORY SYSTEM JUSCO, a chain of "general merchandise stores" and the largest of its type in Japan. The company follows Perpetual Inventory System. The company furnishes the following information for the month of January 2018: Date Description Quantity Unit cost (OMR) January 1 Opening Inventory 1,500 15 January 6 Purchase 4,500 16 January 9 Sales 1,200 January 11 Purchase 3,300 16 January 12 Purchase 4,500 17 January 14 Sales 2,300 January 20 Purchase 1,600 18 January 22 Purchase 1,300 19 January 24 Sales 500 You are required to compute: a) The amount of Cost of goods sold based on Weighted Average Method using periodic inventory system. b) Ending Inventory Value based on Weighted Average Method using periodic inventory system. c) Show journal entries based on Weighted Average Method using periodic inventory system.