26.6 - Apply perpetual FIFO and weighted average. Answer questions about results. Dene Company uses a perpetual inventory system and reports the following inventory transactions for the month of July: July Units 150 230 (250) 490 Unit Cost $5.00 $6.75 1 Inventory 12 Purchases 20 Sale 28 Purchases $7.00 Instructions a) Calculate the cost of goods sold and ending inventory under (1) FIFO and (2) weighted average (round the weighted average cost per unit to two decimal places.)