The accounting records of Carla Vista Electronics show the following data. Beginning inventory 6,000 units at $5 Purchases Sales 9,000 units at $7 9,300 units at $10 Calculate weighted-average unit cost. (Round answer to 3 decimal places, e.g. 5.125.) Weighted-average unit cost $ eTextbook and Media Determine cost of goods sold during the period under a periodic inventory system using the FIFO method, the LIFO method, and the average-cost method. (Round answers to O decimal places, e.g. 125.) FIFO Cost of goods sold LIFO Average-cost