Auto-translated
The only thing that's unclear here is what "Absorbed Damage" means.
This is a hero's skill in a faction-specific ability, meaning it ranges from 50% to 80% (for example, at a developed level, it's 60%).
Hey Prizrak, have you made any progress playing as the Stronghold faction? I've read your forums, about how you played against the Necropolis and everything! Judging by the formula, 1100 is a whole number and it won't disappear. Absorbed rage points (or, as you said, I think it refers to the damage dealt by a creature, i.e., the rage absorbed from the damage), divided by its total health!!!