Marcum Company had the following information related to its inventory for the month of September. Date Transaction September 1 Beginning inventory 300 units at $10 September 2 Sold 200 units at $24 selling price September 3 Purchased 800 units at $12 September 14 Sold 500 units at $24 selling price September 20 Purchases 500 units at $13 September 30 Sold 300 units at $25 selling price At the end of the month, it has 600 units in ending inventory. 2. Assume Marcum uses the periodic system of inventory. (a) Calculate ending inventory and cost of goods sold using FIFO (b) Calculate ending inventory and cost of goods sold using LIFO. (c) Calculate ending inventory and cost of goods sold using weighted average cost 3. Assume Marcum uses the perpetual system of inventory. (a) Calculate ending inventory and cost of goods sold using FIFO. (The values are the same as with FIFO under the periodic method. Use the perpetual method to show you can work through the calculations. (b) Calculate ending inventory and cost of goods sold using LIFO