Dundas Ltd uses the periodic inventory system and has the following inventory information for the month of March 2021:

Date	Detail	Units	Unit Cost
1-March	Inventory	1,200	$90
9- March	Purchase	4,000	$92
18- March	Purchase	2,500	$96
31- March	Inventory	1,600	-

Required:

Answer the following independent questions.

a) Assume that the company uses the FIFO method. The value of the cost of sales at 31 March 2021 is $__________.

b) Assume that the company uses the average cost method. The value of the cost of ending inventory at 31 March 2021 is $__________.

c) Assume that the company uses the LIFO method. The value of the cost of ending inventory at 31 March 2021 is $__________.