6-10. TWU, Inc uses a perpetual inventory system.   Date   Units Costs Total costs Sept.  1 Beginning inventory 200 $5/unit $ 1,000       4 Sales (price $15/unit) 100              22 Purchased 600 $6/unit 3,600      26 Sales (pri

6-10. TWU, Inc uses a perpetual inventory system.

6. If TWU, Inc uses the FIFO method, how much is cost of goods sold for September?

7. If TWU, Inc uses the FIFO method, how much is ending inventory for September?

8. If TWU, Inc uses the LIFO method, how much is cost of goods sold for September?

9. If TWU, Inc uses the LIFO method, how much is ending inventory for September?

10.  If TWU, Inc uses the average cost method, how much is cost of goods sold for Septembe r? (Round to two decimal points)