Talk:Status Effect/@comment-120.16.75.0-20150514075137/@comment-24557530-20150514092437

its weighted by the % of the total damage. Your example weapon got 200 dmg in total so 100/200 = 50% chance to proc toxin, 80/200 = 40% chance to proc slash and 10/200 = 5% chance to proc impact or puncture.