please show work

8. A company uses the periodic inventory method and shows the following data related to inventory during January Inventory, January 1 100 units @ $5.00 Purchase, January 9 300 units @ $5.40 Purchase, January 19 70 units @ $6.00 Number of units sold 270 Determine the ending inventory balance under the following methods. (Please show your calculations) (a) FIFO (5 points) (b) LIFO (5 points) (c) Weighted average cost (5 points)