Is this possible? O.O (Upper Smash damage)

Well i've benn thinking about does and don'ts for my warrior and i found this Upper smash damage calculation, and looks like its official:
First we have this crazy formula (AP x A) x2 + (AP x B). My AP as lvl 60 Warrior is 718 (490+228), and the A% and B% at lvl 10 are 490% and 290%.
According to this formula i calculated my dmg WITHOUT adding the DP of target and etc.

Lvl 10 Damage:
(718 x 490%) x 2 + (718 x 290%)
3518,2 x 2 + 2082,2 = 9118,6 dmg
It was like 9k dmg NON CRIT at lvl 60?
Then we have the Master lvl %s, 520% and 320%, and here its my dmg:

Master Damage
(718 x 520%) x 2 + (718 x 320%)
3733,6 x 2 + 2297,6 = 9764,8 dmg
I wanted to ask if its possible to do this, or if there's some kind of bug on this skill before consuming points, because this is a Fighter skill, and its more powerful than almost all of warrior skills D:
Thanks for reading

Time to test this on my bunny and see what kinda damage it does...

So.

AP = 1634+2154 = 3788 (yes, half my equip was missing and I was doing this unbuffed, lol.)

(3788 x 520%) x 2 + (3788 x 320%)
39395,2 + 12121,6 = 51516,8

Tested damage on two random monsters because basically, I was too lazy to find others

Mantis = 17k crit
Dekumanus = 10k crit

Riiight.

So yeah, this is the skill I've never been able to figure out either, lol.

(While testing, I randomly buffed up and tested my mastered Tetra for the first time. 47k non-crit with that crappy AP ftw.)

D: Then i'll be hitting around 3k crit, too bad the formula is bugged. I've got all worked up for nothing xD
I'll keep lvling up with shockwave then it does 3k crit also.
Btw, is Faint a useful skill? i dont even know what it does (i know it applies to Shockwave, im not stupid)

IIRC, Faint "stuns" monsters? D:
It's the thing where you get stars above your head and can't do anything till it wears off XD

It look useful, do you know how much time they re stunned? o.o It only has 1 lvl

Ahem.

http://www.mymmogames.net/wiki/index.php/Faint

*points at duration*