Carlson Auto Dealers Inc. sells a handmade automobile as its only product. Each automobile is identical; however, they can be distinguished by their unique ID number. At the beginning of 2018, Carlson had three cars in inventory, as follows:

Car ID	Cost
203	$	93,000
207		93,000
210		96,000

During 2018, each of the three autos sold for $123,000. Additional purchases (listed in chronological order) and sales for the year were as follows:

Car ID	Cost			Selling Price
211	$	93,000		$	123,000
212		93,000			126,000
213		94,500		not sold
214		96,000			129,000
215		99,000			133,500
216		97,500		not sold
217		102,000			138,000
218		99,300			139,500
219		105,000		not sold

Required: 1. Calculate 2018 ending inventory and cost of goods sold assuming the company uses the specific identification inventory method. 2. Calculate ending inventory and cost of goods sold assuming FIFO and a periodic inventory system. 3. Calculate ending inventory and cost of goods sold assuming LIFO and a periodic inventory system. 4. Calculate ending inventory and cost of goods sold assuming the average cost method and a periodic inventory system.