Review the example below on how to calculate Cost of Goods Sold and Ending Inventory using FIFO: DATE UNITS PER UNIT COST COGS INV BALANCE July 1 Beg Inv. 6 units $60 $360 $360 July 8 Purchase 5 units $67 335 695 July 10 From July 1 (6) units 60 360 335 From July 8 (1) unit 67 67 268 July 15 Purchase 10 units $70 700 968 July 22 From July 8 (4) units 67 268 700 From July 15 (4) units 70 280 420 TOTAL 6 units $ 975 $ 420 Next, solve the same problem using the LIFO method (complete non-shaded areas as necessary): DATE TOTAL UNITS PER UNIT COST COGS INV BALANCE 4 $ $