Square9 Corporation has provided the following information about one of its laptop computers: Date Transaction Number of Units Cost per Unit 1/1 Beginning Inventory 220 $520 5/5 Purchase 320 $570 8/10 Purchase 420 $620 10/15 Purchase 260 $670 During the year, Square9 sold 1,050 laptop computers. What was cost of goods sold using the LIFO cost flow assumption