Percent "magic" potential stat on weapons?

Scoured the forums, poked the magician discussions, raised hell, still can't find an answer. Pardon me/link me if I've overlooked something.
Yes, I'm well aware that people say it's % of your magic attack, but I haven't seen it confirmed first-hand anywhere, just parroted speculations.

So help me with this one, guys-- post-BB, what on earth is the %magic potential stat? Prior to BB, of course, it was a percent based off your total magic stat, but that stat is gone from the stat window.

Does it only affect your total m.atk, with all m.atk off of equips?
Does it affect the m.atk on your weapon alone?
or does it affect your total magic-based/int-affected range?

or has it stopped working entirely after BB, much like how % boss damage was rumored to be broken (is it? not sure about that either)?

AND does it hold as much weight as it used to, or is it more effective to cube for total damage/INT/some other stat? (sob. ;_; )

The most effective way to examine this would be to get two near-identical weapons, one without % magic and one with, of course, but I can neither find a weapon with similar m.atk to my wand (which has % magic) to borrow, nor can I find a pair of other such weapons. If you can test them first-hand, that would be hugely appreciated.

thanks, peoples.

Max Range = (4 * INT + LUK) * ((Magic Attack * % Magic Attack) / 100)

Magic Attack = Magic from equip (Medal, Earrings, Glove, Shiled, Weapon, Cape, Belt, Rings, Shoes ...) + Magic from Blessing of Fairy/Magic from The Empress’ Blessing + Magic from Passive Buff + Magic from Potion/Magic from Active Buff



Assuming that % Magic Attack work same as % Attack, check if it match with urs range

Ran the calculations several times on my clean unbuffed stats, and nothing even came close to my max range-- you didn't mention mastery skills, haha (+10 for spell mastery, +30 for buff mastery). Then it started making sense.

Answer: It not only works, it's % of total magic attack. Bugger.

Time to run a million calculations to determine whether I should recube it. Oh BOY! Thanks.

Spell Mastery and Buff Mastery are count as Passive Buffs

To make it a bit easier on the math, you should be able to multiply your final damage by the increase and get the same number as if you increased magic attack before doing the calcuation and get the same result, since magic is multiplying the entirety of the int+luk part, whether you do ( (a * b) / d ) or ( (a/d) * b ), you get the same result.

Note: a, b, and d are just arbitary numbers that in this case, a = MA, b = MA%Pot, d = 100.