Tableau DA 5-2: Exercise, Perpetual: Inventory costing methods LO P1 ATV Co. began operations on March 1 and uses a perpetual inventory system. It entered into purchases and sales for March as shown in the Tableau Dashboard. 1. Compute the cost assigned to ending inventory using FIFO. 2. Compute the cost assigned to ending inventory using LIFO. 3. Compute the cost assigned to ending inventory using Weighted Average.