2) Ling Industries uses the periodic system and has the following data at the end of the year: Units Cost per Unit Beginning Inventory at Jan. 1st 100 $5.00 Inventory Purchases during the year: April 20 $5.50 July $6.00 October $6.25 According to the December 31st inventory count, ending inventory for the year is 45 units. Calculate the dollar amounts of COGS and Ending Inventory under the following methods: (a) (b) FIFO LIFO Average Cost (round numbers to the nearest cent)