Concord Company's inventory records show the following data: Units Unit Cost 10200 $9.40 Inventory, January 1 Purchases: June 18 November 8 8500 9.00 6400 7.00 A physical inventory on December 31 shows 4100 units on hand. Concord sells the units for $14 each. The company has an effective tax rate of 22%. Concord uses the periodic inventory method. Under the LIFO method, cost of goods sold is $178640 $188480. $183520 $28700