Problem 6-4A The management of Gresa Inc. is reevaluating the appropriateness of using its present inventory cost flow method, which is average-cost. The company requests your help determining the results of operations for 2017 If either the FIFO or the LIFO method had been used. For 2017, the accounting records show these data: Beginning (10,000 units) Ending (12,000 units) $1,273,000 671,000 $20,000 Total net sales (268,000 units) Total cost of goods purchased (270,000 units) Purchases were made quarterly as follows. Units Unit Cost Cost 70,000 $2.30 $161,000 60,000 2.40 144,000 60,000 2.50 150,000 480,000 2.70216,000 270,000 $671,000