Cornerstone Exercise 6-32 (Algorithmic) Inventory Costing Methods: Periodic Average Cost (Appendix 6B) Filimonov inc, has the following information related to purchases and sales of one of its inventory items: Assume that Filimonov uses a periodic inventory system. Required: Calculate the cost of goods sold and the cost of ending inventory using the average cost method. (Note: Use four decimal places for per-unit calculations and round all other numbers to the nearest dollar.) Inventory Costing Methods: Periodic LIFO (Appendix 6B) Filimonov Inc. has the following information related to purchases and sales of one of its inventory items: Assume that Filimonov uses a periodic inventory system. Required: Calculate the cost of goods sold and the cost of ending inventory using the LIFO inventory costing method. Cost of goods sold Cost of ending inventory \& x