Ev's Value?

[Speed_Punk]

Hi guys, I was looking at previous posts of pokemon black white 2, and I started to analyze the code, with the guide I was able to understand almost everything, the only thing I can't understand is the EV values.

For Example: Charizard 06 00 7E 00 9B 01 93 01 96 01 18 0A

18 if I understand correctly it should be the EV value, looking at this guide (https://projectpokemon.org/home/forums/topic/27181-how-to-hack-pwtchampions-league/) everything is clear to me, except precisely the reasoning that suggests that 11 in the case of Venusaur corresponds to EV's in Atk + Sp. Atk and to how much.
In summary, how can I precisely derive the EV values?

(I'm sorry for my bad english)