Sheffield Corporation uses a perpetual inventory system. On November 19, the company sold 630 units. The following additional information is available: Unit Cost Total Cost Units Nov. 1 inventory 280 $13 $3,640 Nov. 15 purchase 440 14 6,160 Nov. 23 purchase 400 17 6.800 1,120 $16,600 (a) Calculate the November 30 inventory and the November cost of goods sold, using the moving average cost formula. (Round unit cost to 2 decimal places, e.g. 52.75 and final answers to O decimal places. e.g. 5,275.) Cost of Goods Sold $ Ending Inventory $