Inventory Costing Methods-Periodic Method The following data are for the Portet Corporation, which sells just one product: Beginning Inventory, January 1 1,200 Purchases: February 11 1,500 1,400 1,100 May 18 October 23 March 1 July 1 1,400 1,400 October 29 1,000 Sales: Calculate the value of ending inventory and cost of goods sold at year-end using the periodic method and (a) first-in, first-out, (b) last-in, first-out, and (c) weighted-average cost method. Hint: For weighted-average cost, round the cost per unit to 3 decimal places and round your final answers to the nearest dollar. a. First-in, First-out: Units Unit Cost $13 $14 15 17 Ending Inventory $ Cost of goods sold $ b. Last-in, first-out: Ending Inventory $ Cost of goods sold $ c. Weighted Average Ending Inventory $ Cost of goods sold $ X x 0 x 0 x 0 x ox