Given the following data, calculate cost of goods sold using the FIFO costing method. Date Item Unit 1/1 Beginning inventory 33 units at $8 per unit 2/25 Purchase of inventory 12 units at $10 per unit 5/20 Purchase of inventory 25 units at $14 per unit 8/15 Purchase of inventory 5 units at $12 per unit 10/17 Purchase of inventory 12 units at $18 per unit 12/31 Ending inventory 18 units