Talk:Armor/@comment-89.156.3.186-20121220194141/@comment-4087140-20121220200950

I still don't understand what you're trying to calculate.

If you want to find out how much more damage you're dealing, then you can use:
 * (100armor)/(100armorpenetration)

So 50 armor and 20 penetration makes
 * (10050)/(1005020)150/130~1.15415.4% more damage from penetration.

Does this help?