Inventory Costing: LIFO Filimonov inc. has the following information related to purchases and sales of one of its inventory items: Refer to the information for Flimonov Inc. and assume that the company uses a perpefual inventory system. This information has been collected in the Microsoft Excel Online file. Open the spreadsheet, perform the required analysis, and input your answers in the question below. Required: Caiculate the cost of goods sold and the cost of ending inventory using the UFO inventory costing method