i need help with this practice question

b. Assume that Chen uses the last-in, first-out method. Compute the cost of goods sold for 2012 and the ending invertory balance at Decernter 31 , 2012 for product A. C. Assume that Chen uses the weighted-average cost method. Compute the cost of goods sold for 2012 and the ending inventory balance at December 31,2012 , for product A d. Assuming that Chen's products are pershable lems, which of the three mentory cosing methods would yeu thouse tec. Assume this is during a period of rising costs. Inventory Costing Methods-Periodic Method Chen Sales Corporfation uses the periodic inventor] Required a. Assume that Chen uses the first-in, first-out method. Compute the cost of goods sold for 2012 anc b. Assume that Chen uses the last-in, first-out method. Compute the cost of goods sold for 2012 and c. Assume that Chen uses the weighted-average cost method. Compute the cost of goods sold for 20 em. On January 1,2012, Chen had: 1,000 units of product A with a unit cost of $20 the ending inventory balance at December 31,2012 , for product A. the ending inventory balance at December 31,2012 , for product A. 12 and the ending inventory balance at December 31,2012 , for product A. b. Assume that Chen uses the last-in, first-out method. Compute the cost of goods sold for 2012 and the ending invertory balance at Decernter 31 , 2012 for product A. C. Assume that Chen uses the weighted-average cost method. Compute the cost of goods sold for 2012 and the ending inventory balance at December 31,2012 , for product A d. Assuming that Chen's products are pershable lems, which of the three mentory cosing methods would yeu thouse tec. Assume this is during a period of rising costs. Inventory Costing Methods-Periodic Method Chen Sales Corporfation uses the periodic inventor] Required a. Assume that Chen uses the first-in, first-out method. Compute the cost of goods sold for 2012 anc b. Assume that Chen uses the last-in, first-out method. Compute the cost of goods sold for 2012 and c. Assume that Chen uses the weighted-average cost method. Compute the cost of goods sold for 20 em. On January 1,2012, Chen had: 1,000 units of product A with a unit cost of $20 the ending inventory balance at December 31,2012 , for product A. the ending inventory balance at December 31,2012 , for product A. 12 and the ending inventory balance at December 31,2012 , for product A