The following data was obtained from the inventory records of Moore Company which started operations on January 1, 2019: Jan. 1: 30 units @ $50 May 1: 50 units @ $52 Nov.1: 20 units @ $60 A physical count of the inventory on December 31, 2019 indicated 35 units remain. REQUIRED: Calculate both Cost of Goods Sold and Ending Inventory under the three methods of periodic inventory costing: CGS EI FIFO LIFO AVERAGE COST