Chart/ Percent Change Help

[Bobbi]

Chart/ Percent Change Help

PERCENT CHANGE IN MONTHLY* VALUE OF INVENTORY
AT SIX BUSINESSES FROM APRIL TO JUNE

Business	Percent Change from April to May	Percent Change from May to June
G	+6	+8
K	+5
M	+2	+12
R	+8
V	+14	0
Z	+2

*Inventory values are determined at the end of each month.

For which of the six businesses shown was the percent change in value of inventory from April to June greatest?

1. G
2. K
3. M
4. R
5. V

I know the answer is A, but I'm not sure how they got it. I keep getting C for my answer.

I know that you can eliminate answer choices B, D, and E because the have a decrease. But I am getting a 12% change for Business M and a 8% change for Business G. Showing that Choice C would be the answer and it is not. Please explain

[Denis]

G: 1.06 * 1.08 = 1.1448 or 14.48%

M: 1.02 * 1.12 = 1.1424 or 14.24%

If G had been 7% for both months: 1.07 * 1.07 = 1.1449 or 14.49%;
what does that remind you of thinking of squares and rectangles?