P7.2 (Algo) Analyzing the Effects of Four Alternative Inventory Methods LO7.2 Kirtiand Corporation uses a periodic imventory system. At the end of the annual acconintang setiod, Decamber 3, the hecounting records for the most poputar item in inventory system. At the end of woined the follminen. Required: a. Compute the amount of goods available for sale. b. \& c. fompute the amount of ending inventory and cost of goods sold at December 31, under Averoge cost, Firstin, first-out, Laskin, first-out and Specific identification inventory costing methods. For Specific identification, assume that the furst sale was belected twofiths from the beginning inventory and three-fifths from the purchase of January 30 . Assume that the second sale was selected from the remaindor of the beginning inventory, with the balance from the purchase of May 1 . Complete this question by entering your answers in the tabs below. Compute the amount of goods available for sale. Complete this question by entering your answers in the tabs below. Compute the amount of ending inventory and cost of goods sold at December 31 underAverage cost, First-in, first-out, Lastin, first-out, Specific identification of the inventory costing methods. For Specific identification, assume that the first sale was selected two-fifths from the beginning inventory and three-fifths from the purchase of January 30 . Assume that the second sale was selected from the remainder of the beginning inventory, with the balance from the purchase of May 1 . (Do not round intermediate calcuiations. Round your answers to the nearest whole dollar amount.)