Units Unit Cost Inventory, December 31, 2018 2,000 $6 During 2019: Purchase, March 21 5,010 8 Purchase, August 1 2,920 Inventory, December 31, 2019 4,140 Required: Compute Product A's ending inventory and cost of goods sold for the year 2019 under FIFO, LIFO, and average cost inventory costing methods. (Round "Average cost per unit" to 2 decimal places and final answers to nearest whole dollar amount.) Ending inventory Cost of goods sold FIFO LIFO Average Cost