Core/Auras: reworked multiplicative AuraEffects calculation

src/server/game/Spells/SpellEffects.cpp

@@ -2814,7 +2814,7 @@ void Spell::EffectWeaponDmg(SpellEffIndex effIndex)
             case RANGED_ATTACK: unitMod = UNIT_MOD_DAMAGE_RANGED;   break;
         }
 
-        float weapon_total_pct = m_caster->GetModifierValue(unitMod, TOTAL_PCT);
+        float weapon_total_pct = m_caster->GetPctModifierValue(unitMod, TOTAL_PCT);
         if (fixed_bonus)
             fixed_bonus = int32(fixed_bonus * weapon_total_pct);
     }