The Gleem Sales Corporation uses the periodic inventory system. On January 1, 2012, Gleem had: 2,600 units of product B with a unit cost of $100 per unit. A summary of purchases and sales during 2012 follows:

Inventory Costing Methods-Periodic Method The Gleem Sales Corporation uses the periodic inventory system. On January 1, 2012, Gleem had: 2,600 units of product B with a unit cost of $100 per unit. A summary of purchases and sales during 2012 follows: Unit Units Units Cost Purchased Sold Jan.3 Mar.8 $104 June 13 Sept.19 110 Nov.23 115 Dec.28 1,600 3,000 2,000 800 1,800 Required a. Assume that Gleem uses the first-in, first-out method. Compute the cost of goods sold for 2012 and the b. Assume that Gleem uses the last-in, first-out method. Compute the cost of goods sold for 2012 and the C. Assume that Gleem uses the weighted-average cost method. Compute the cost of goods sold for 2012 and ending inventory balance at December 31, 2012, for product B. ending inventory balance at December 31, 2012, for product B. the ending inventory balance at December 31, 2012, for product B