Units Unit Cost Inventory, January 1 10,000 $9.20 Purchases: June 18 9,000 8.00 November 8 6,000 7.25 A physical inventory on December 31 shows 3,000 units on hand. Henri sells the units for $12 each. The company has an effective tax rate of 20%. Henri uses the periodic inventory method. Under the LIFO method, cost of goods sold is a. $29,000. b. $179,900. c. $179,300. d. $178,500