Shred / Mangle:
Minim Damage = 5.4*MinWD+302
Maxim Damage = 5.4*MaxWD+302
5.4 = (the 540% increased weapon damage - tooltip)
MinWD = (Minim weapon damage)
MaxWD = (Max weapon damage)
302 = constant (tooltip)
Плюс, у кота атаки не нормализованы.
Т.е.
non-normalized_damage = base_weapon_damage + (weapon speed * Attack Power / 14)