12. (12 pts) The Costup Company sells many products. Top is one of its popular items. Below is an analysis of the inventory purchases and sales of Top for the month of March: 3/1 Beginning inventory 40 units at $9 3/8 Purchased 100 units at $10 3/15 Sold 40 units at $25 3/17 Sold 80 units at $25 3/20 Purchased 90 units at $11 2/25 Sold 60 units at $25 a) Provide the following assuming Cog Company uses a perpetual inventory system. FIFO - Ending Inventory $ LIFO - Cost of Goods Sold $ Moving Average - Gross Profit b) Now, provide the following assuming Cog Company uses a periodic inventory system. FIFO - Gross Profit LIFO - Cost of Goods Sold Weighted Average - Ending Inventory $