1. U
2. UpCo, which started in 20X7, purchases inventory quarterly and uses LIFO costing under the periodic method. Its 20X720X9 inventory records are:

3. Purchase date	Units	Unit cost	Total cost	Ending inv. (units)
   20X7
   January	2,600	$17	$44,200
   April	700	$16	11,200
   July	3,300	$19	62,700
   October	1,300 7900	$22	28,600 146700
   Ending inventory				900
   20X8
   January	1,300	$22	$28,600
   April	1,500	$23	34,500
   July	1,000	$24	24,000
   October	2,000 5800	$25	50,000 137100
   Ending inventory				1,400
   20X9
   January	1,000	$25	$25,000
   April	1,300	$25	32,500
   July	1,300	$26	33,800
   October	1,800	$27	48,600
   Ending inventory	5400		139900	1,700

   Calculate UpCos cost of goods sold and ending inventory for 20X7, 20X8 and 20X9.