Metlock, Inc. has the following inventory data: 35 units at $70 209 units at $65 139 units 104 units at $67 97 units July 1 Beginning inventory 5 Purchases 14 Sale 21 Purchases 30 Sale Assuming that a perpetual inventory system is used, what is the cost of goods sold on a LIFO basis for July? $18546 O $15486 $15534 O$15812