Gregs Bicycle Shop has the following transactions related to its top-selling Mongoose mountain bike for the month of March. Greg's Bicycle Shop uses a periodic inventory system.

Date	Transactions	Units	Cost per Unit	Total Cost
March 1	Beginning inventory	20	$180	$	3,600
March 5	Sale ($260 each)	15
March 9	Purchase	10	200		2,000
March 17	Sale ($310 each)	8
March 22	Purchase	10	210		2,100
March 27	Sale ($335 each)	12
March 30	Purchase	7	230		1,610
				$	9,310

a) Using FIFO, calculate ending inventory and cost of goods sold at March 31.

B) Using LIFO, calculate ending inventory and cost of goods sold at March 31

C) Using weighted-average cost, calculate ending inventory and cost of goods sold at March 31. (Round your intermediate and final answers to 2 decimal places.)

D) Calculate sales revenue and gross profit under each of the four methods (Round your intermediate and final answers to 2 decimal places.)