Square9 Corporation has provided the following information about one of its laptop computers: Number of Cost per Date Transaction Units Unit 1/1 Beginning Inventory 240 $540 5/5 Purchase 340 $590 8/10 Purchase 440 $640 10/15 Purchase 270 $690 During the year, Square9 sold 1,100 laptop computers. What was cost of goods sold using the LIFO cost flow assumption? Multiple Choice $685,500. $672,000. $667,000.