of Aramco Company uses a periodic inventory system. Its records show the following for the month of January, in which 170 units were sold. Date Explanation Units Unit Cost Total cost January 1 Beginning inventory 100 $8 800 January 7 Purchases 50 $10 500 January 18 Purchases 60 $11 660 January 30 Ending inventory 40 Instructions Compute the ending inventory and cost of goods sold using (a) the FIFO method, (b) the LIFO method, and (c) the average-cost method. (3*3=9 marks) Format Beginning inventory Add: Purchases Cost of goods available for sale Less: ending inventory ands sold FIFO LIFO Average cost Finish attempt