How much boss do I need to beat 9% w.att?

Similar to this thread: http://www.southperry.net/showthread.php...%20Damage?

Im a Xenon and have about 600 w.att (which means up to 750 when bossing) clean range without any source of % w.att from before apart from echo.

Total/boss dmg:

80% Opatz
60% multilatern
15% DS link
10% DA Link
20% Reinforce on Fuzzy
6% total dmg hybrid heart (planing on recubing this if 6% w.att beats my current stat, 9% dex 6% str on it aswell)
27% dojo glove
14% char cards

PDR:

15% 2nd weapon
30% offensive matrix
30% fuzzy 1vs1
10% hyper fuzzy
8% pirate SS set
15% lumi link
10% ambition

Note that Im not planing on recubing my 2nd weapon for now and Im not going past unique and Im only aiming to kill Empress at this point, because CRA needs legendary for sure. This is mainly because EMS is getting a bunch of free cubes per account soon.

If this helps:

We currently have no added pot cubes in cs and havent had that for a very long time.

Im planing on changing weapon from:
126 w.att 45 all stat lvl 110 Pot: 6% total dmg 9% w.att Added pot: 6% w.att on

To:
201 w.att 70 all stat loveless weapon. This weapon has no good potential at all, but its the weapon Im going to cube to unique.

Less than 30.

1 watk% = [100%+%boss+%total] / [100%+%watk] boss%

Too lazy to plug in the numbers right now but yeah, just multiply that by 9.

edit: well there's an error in there I think, one sec

edit2: nvm there's no error, I was doing 233%/1% instead of 233%/100% for some reason. 1% atk = 2.33% boss for you

edit3: err it's 332%/100% so actually 1% atk = 3.32% boss, sry miscounted I wasn't really paying attention

Less than 30.

Sweet, gonna aim for 30% then.

1 watk% = [100%+%boss+%total] / [100%+%watk] boss%

Too lazy to plug in the numbers right now but yeah, just multiply that by 9.

edit: well there's an error in there, should be a /100 in there.

Oh nice, gonna save that formula for later. Thanks