Nittany Company uses a periodic inventory system. At the end of the annual accounting period, December 31 of the current year, the accounting records provided the following information for product 1: Units Unit Cost Inventory, December 31, prior year For the current year: 1,940 $7 edi Purchase, March 21 5,100 9 Purchase, August 1 2,900 10 Inventory, December 31, current year 4,170 ON Required: inces Compute ending inventory and cost of goods sold for the current year 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