Jackson Company provided the following data about its inventory for the month of April. Use this information for the questions below.

Date	Transaction
April 1	Beginning inventory 300 units at $10
April 2	Sold 200 units at $24
April 3	Purchased 800 units at $12
April 14	Sold 500 units at $24
April 20	Purchased 500 units at $13
April 30	Sold 300 units at $25

Assume Jackson uses the periodic system of inventory. Calculate ending inventory and cost of goods sold using FIFO, LIFO, and weighted-average cost method. (Hint: First determine the number of units remaining in ending inventory.)