Talk:Armor/@comment-89.156.3.186-20121220194141/@comment-108.200.171.77-20121223023151

I hope this is more intuitive.

First we calculate the percentage of health removed from some damage taken.

(Health)/[(Damage)*(%reduction)]=(%health removed)

also, we want to know what exact health we need if there was no damage reduction. In other words we want to find the "effective health". So,

(Effective health)/(damage)*(no reduction)=(% health removed), where (no reduction)=1

Therefore,

(Effective health)/(damage)*(1)=(Health)/[(Damage)*(%reduction)]

and, (Effective health)=(health)/(%damage reduction).