A company uses the weighted average method of invertory valuation under a periodic Inventory system. The company began the year with a ser inventory balance. They had the following transactions during the year 1. Purchased 63 units at $6 per unit 2. Purchased 100 units at $6 per chi 3. Sold 30 units at $12 per unit 4 Purchased 60 units at $7 per unit 5. Sold 80 units at $13.75 per unit At the end of the year, the company counted the inventory and found 63 units remaining Calculate the cost of goods sold for the year (Round the unit costs to two decimal places and total cos to the nearest dolar) A $1,390 OB $395 OC. $1.003 OD $6