This question already has an answer here:

I am not a Diablo 3 expert so I just want to know why after adding a second weapon for my monk, my overall damage decreases ?!

marked as duplicate by Frank, CloudyMusic, Ender, WizLiz, Studoku Mar 15 '15 at 23:26

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • 1
    What weapon? What did you replace it with? We're going to need to know more than just that it reduced your damage. – Frank Mar 15 '15 at 20:10
  • Excuse me, sorry for lack of information. I have a monk, got a new dagger. But when I combine it with one of my old fist weapons, the overall damage decreases ! Let me be more specific. This new dagger gives me overall 42.0 k damage. When I add my fist weapon to it , the overall damage goes back to 37.9 k !!! Is it weird or am I missing anything ? – Amer Mar 15 '15 at 20:19

When dual wielding your damage is calculated by taking the average damage of both your weapons and adding 15% (if I recall correctly) of attack speed.
If one of your weapons is noticeably weaker than the other, your overall damage is going to drop.

Not the answer you're looking for? Browse other questions tagged or ask your own question.