es 13. Given the following data, calculate the cost of goods sold for the 11/15 sale using the weighted-average method for a perpetual inventory system, rounding to the nearest dollar. (Do not round in the process of your calculations, only round your final answer.) 1/1 Beginning inventory 50 units at $10 per unit 3/5 Purchases 30 units at $14 per unit 4/15 Sale 20 units at $30 per unit 5/30 Purchases 50 units at $15 per unit 11/15 Sale 60 units at $32 per unit 12/31 Ending inventory 50 units A) $720 B) $771 C) $785 OD) $1,920 2 points