Concord Company uses the perpetual inventory system and the moving-average method to value inventories. On August 1, there were 16000 units valued at $30000 in the beginning inventory. On August 10, 24000 units were purchased for $6 per unit. On August 15, 16000 units were sold for $12 per unit. The amount charged to cost of goods sold on August 15 was O $96000 O $30000 O $69600. O $62640