Hamilton Company uses a periodic inventory system. At the end of the annual accounting period, December of the current year, the accounting records provided the following information for product Cast Inventory, December 11, pior year 1,960 For the current year Purchase, March 21 6,190 Purchase, August 1 6 4,020 Inventory, December 31, current year 2,910 Required: Compute ending inventory and cost of goods sold under FIFO, LIFO, and average cost inventory costing methods. (Round "Average cost per unit" to 4 decimal places and final answers to nearest whole dollar amount.) FIFO LIFO Average Coat Ending inventory Cost of goods sold