The accounting records of Kingbird Electronics show the following data. Beginning inventory 2,000 units at $5 Purchases Sales 8,000 units at $7 9,400 units at $10 Your answer is incorrect. Try again. Determine cost of goods sold during the period under a periodic inventory system using the FIFO method. (Round answer to 0 decimal places, e.g. 1,250.) FIFO Cost of goods sold during the period x Your answer is incorrect. Try again. Determine cost of goods sold during the period under a periodic inventory system using the LIFO method. (Round answer to 0 decimal places, e.g. 1,250.) LIFO Cost of goods sold during the period Your answer is incorrect. Try again. Determine cost of goods sold during the period under a periodic inventory system using the average-cost method. (Round average-cost per unit to 3 decimal places, e.g. 12.502 and final answer to o decimal places, e.g. 1,250.) Average-cost Cost of goods sold during the period