Mountbatton Inc.'s inventory records showed the following data for an item it sells. The company uses the perpetual LIFO method of calculating COGS and Ending Inventory. Calculate Cost of Goods Sold for September, 2020. (do not include dollar signs or commas your answer) Date Units Unit Cost Sept. 1 Inventory 4,400 $10.00 Sept.3 Purchases 39,600 $10.40 Sept.7 Sales (at $26 per unit) 15,400 Sept. 20 Purchases 13,200 $11.00 Sept. 22 Sales (at $27 per unit) 35,200 A What is Ending Inventory as of September 30, 2020? (do not include dollar signs or commas in your answer), A