given the following information, determine the cost of goods sold using lifo if there are only 136 units left. number of units cost per unit total cost beginning inventory 80 $1.20 $ 96 january 10 purchase 100 1.15 115 january 16 purchase 100 1.23 123 january 29 purchase 120 1.25 150 goods available for sale 400 $484 multiple choice question. $314.32 $319.44 $323.60