Given the following data, calculate the cost of goods sold using the LIFO costing method. Date Item Unit 1/1 Beginning inventory 14 units at $20 per unit 3/18 Purchase of inventory 12 units at $22 per unit 6/20 Purchase of inventory units at $25 per unit 9/27 Purchase of inventory 30 units at $26 per unit 11/27 Purchase of inventory 25 units at $27 per unit 12/31 Ending inventory 49 units O $1,981 $1,091 $925 $820