Armor penetration order?
It goes: flat reduction % reduction % penetration flat penetration
But, is Bonus Armor Penetration (last whisper) applied before or after % penetration (mastery, darius E)?
It goes: flat reduction % reduction % penetration flat penetration
But, is Bonus Armor Penetration (last whisper) applied before or after % penetration (mastery, darius E)?
% pen is applied after shred and armor ignore, i think
so flat armor pen is technically better on Darius
From the wiki:
Percentage bonus armor penetration The target's bonus armor is treated as being multiplied by a percentage for purposes of damage calculation (100% − the listed penetration). Percentage bonus armor penetration stacks multiplicatively with other sources of percentage armor penetration and is ignored if the target's armor is 0 or less.
Example: 30% bonus armor penetration multiplies the target's bonus armor to 70% without affecting base armor, so a target with 20 base armor and 40 bonus armor will be treated as though it had 48 for purposes of damage calculation (the target's actual armor value will not change, however). (20 + (40 × 0.7) = 48). If the player has multiple sources of percentage bonus penetration, they stack multiplicatively: Example: 10% armor penetration and 30% bonus armor penetration. (20 × 0.9)) + (40 × 0.7 × 0.9)) = 43.2).
Since they stack multiplicatively, order doesn't matter. Only thing is that regular % pen will work against the base armor value as well.