Inventory Costing Methods-Periodic Method The following data are for the Portet Corporation, which sells just one product:

	Units	Unit Cost
Beginning Inventory, January 1	1200	$8
Purchases ......... February 11	1500	9
May 18	1400	10
October 23	1100	14
Sales................ March 1	1400
July 1	1400
October	1200

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. Round the cost per unit to 3 decimal laces and round your final answers to the nearest dollar. If the replacement cost ofthe inventory at year-end is $15, how will the cost of goods sold under each method be affected?