If possible can the work be shown? I really want to know how to do this.

Do It! Review 6-2 The accounting records of Skysong, Inc. show the following data Beginning inventory Purchases Sales 3,230 units at $6 8,620 units at $8 10,067 units at $11 Calculate average unit cost. (Round answer to 3 decimal places, e.g. 5.125.) Average unit cost per unit SHOW LIST OF ACCOUNTS 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 Average-cost Cost of goods sold $