5) The inventory records of Martin Corporation reflected the following information for the month of August:

Date	Transaction	Number of Units	Unit Cost
8/1	Beginning inventory	400	$ 5
8/3	Purchase Number 1	400	$ 5
8/5	Sale Number 1	600
8/7	Sale Number 2	100
8/11	Purchase Number 2	1,000	$ 7
8/17	Sale Number 3	700
8/19	Purchase Number 3	1,000	$ 7
8/21	Sale Number 4	600
8/28	Sale Number 5	600
8/29	Purchase Number 4	1,200	$ 9
8/30	Ending inventory

Required A. Determine the amount of the ending inventory and cost of goods sold under each of the following methods assuming the periodic inventory system.

Method	Ending Inventory	Cost of Goods Sold
a. Average cost	$	$
b. FIFO	$	$
c. LIFO	$	$

B. Why would cash flow considerations relate to the choice of an inventory method?