Please show how you get to the answer and explain it! Please thoroughly show how to do this! I'm so confused.

Given the following information for Gator Company who uses the LIFO method:

			Net		NRV Minus
			Realizable	Replacement	Normal
Item	Quantity	Cost	Value	Cost	Profit
1	1	$17.70	$24.60	$18.00	$17.10
2	1	10.80	8.28	9.30	5.58
3	1	72.00	64.80	67.20	57.60
4	1	4.80	3.12	2.88	2.64
5	1	12.00	12.30	12.60	11.10
6	1	48.00	45.60	38.40	40.80

Required:

a.	Determine the lower of cost or market value for each inventory item for Gator Company.
b.	Determine the lower of cost or market value for Gator Company's inventory if the lower of cost or market rule is applied to the total inventory.