The accounting records of Metlock Electronics show the following data. Beginning inventory 2,000 units at $4 Purchases 8,000 units at $6 Sales 9,400 units at $10 (c) Determine cost of goods sold during the period under a periodic Inventory system using the average-cost method. (Round answer to 0 decimal places, .g. 1,250.) Average-cost Cost of goods sold during the period