Question 4: 40 points Al Ghanim Company uses the periodic inventory system to account for inventories. Information related to Al Ghanim Company's inventory at December 31 is given below: December 1 December 10 December 18 December 26 Total units Beginning inventory 800 Purchase 500 Purchase 300 Purchase 1,000 2,600 units Unit cost ($) 10 12 14 16 Total cost ($) 8,000 6,000 4,200 16,000 $ 34,200 Ending inventory units=1,000 units Unit sold = 1,600 units Instructions Note: Show computations for each of the methods Calculate the value of ending inventory and cost of goods sold for the month of December using the FIFO method Ending inventory (20 points) Cost of goods sold (20 points)