Thompson Company had the following Inventory information for the year ending December 31: Units Unit Cost Total Beginning Inventory 35 $7 $245 Purchases: March 31 40 25 91 360 11 275 60 12 720 160 $1,600 June 151 September 281 Cost of Goods Available for Sale On December 31, Thompson Company had an ending inventory of 75 units. They use a periodic inventory system to compute the cost of ending Inventory. Required: Using LIFO: (a) Compute the cost of ending inventory (b) Compute the cost of goods sold