The inventory records of Cushing Inc. reflected the following information for the year ended December 31, 2019:

	Number of Units			Unit Cost		Total Cost
Inventory, January 1		190		$	13.0	$	2,470
Purchases:
May 30		320			15.0		4,800
September 28		400			17.0		6,800
Goods available for sale		910				$	14,070
Sales:
April 10		(140	)
June 11		(300	)
November 1		(380	)
Inventory, December 31		90

Required:
a. Assume that Cushing, Inc., uses a periodic inventory system. Calculate cost of goods sold and ending inventory under FIFO and LIFO.

b. Assume that Cushing, Inc., uses a perpetual inventory system. Calculate cost of goods sold and ending inventory under FIFO and LIFO.