Quote Originally Posted by whiskeybravo View Post
That math works out I suppose, though I don't quite get where the 100 potency comes from.
Potency is basically a multiplier to your weapon damage, which is then tweaked by attack power and determination, with each point of potency representing 1% of your weapon damage. As such, a 280 potency attack will do 280% of the damage that your auto-attack does over 3 seconds (which is 100 potency as previously mentioned). It's a bit more complicated than that, but that's the simple version.