Warlock damage reduction questoin

[firekittysgrandma7]

So i would really appreciate a little help on how versatility works compared to other damage reductions. As a 660 lock in 6.2 and full versatility gear (offpieces, 1 main piece, dagger, and all enchants) you would have over 10% versatility and hence a little over 5% damage reduction. im wondering how this works for warlocks since we have 10% from UR glyph, 15% from trinket bonus, and 20% split damage with pet(soul link). would that be roughly 30% damage reduction and of that damage 20% is split with pet?? so with no gear on you hit me for a 100. 30% of 100 is 30, so you hit me for a 70. 20% of 70 is 14, so i end up getting hit for a 56?(not calc crits or armor) If anyone has tried this please post because i would love some math and stats on this, if my math is off please help don't bust my nut. thanks for the help

[purebalance]

So i would really appreciate a little help on how versatility works compared to other damage reductions. As a 660 lock in 6.2 and full versatility gear (offpieces, 1 main piece, dagger, and all enchants) you would have over 10% versatility and hence a little over 5% damage reduction. im wondering how this works for warlocks since we have 10% from UR glyph, 15% from trinket bonus, and 20% split damage with pet(soul link). would that be roughly 30% damage reduction and of that damage 20% is split with pet?? so with no gear on you hit me for a 100. 30% of 100 is 30, so you hit me for a 70. 20% of 70 is 14, so i end up getting hit for a 56?(not calc crits or armor) If anyone has tried this please post because i would love some math and stats on this, if my math is off please help don't bust my nut. thanks for the help

Yes damage reduction is multiplicative

[Livevil]

You will be taking 80% of incoming dmg due to soul link and that will be getting reduced by 27,325% due the dmg mitigation of versatility, glyph and trinket bonus.