The accounting records of Blue Spruce Corp. show the following data Beginning inventory Purchases Sales 2,710 units at $6 8,360 units at $8 9,670 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 0 decimal places, eg. 125.) FIFO LIFO Average-cost Cost of goods sold