what is the amount of the companys merchandise inventory as disclosed in the december 31,2017 balance sheet, using the periodic LIFO inventory costing method ?

Evans, Inc. had the following balances and transactions during 2017: What is the amount of the company's Merchandise Inventory, as disclosed in the December 31, 2017 balance sheet, using the periodic LIFO inventory costing method? Supporting Materials Beginning Merchandise Inventory March 10 June 10 October 30 30 units at $70 Sold 27 units Purchased 90 units at $80 Sold 85 units