Given the following data, calculate the cost of goods sold using the average-cost method. (Round any intermediary and final answers to two decimal places.) Date Item Unit 1/1 Beginning inventory 40 units at $15 per unit Purchase of 4/11 25 units at $20 per unit inventory Purchase of 10/1 40 units at $25 per unit inventory 12/31 Ending inventory 45 units $900.00 O $1,200.00 O $1,400.00 O $1,000.00