Dmg bonus, da/dw formulas

[Cippofra]

So I have a few questions regarding contradictions with how monk melee works. At level 30 I get a 1 damage bonus. This is displayed on every weapon I inspect. So this makes my jade mace 10/18? Also, supposedly offhand does not get a bonus. But I've been hitting for 34 dmg with a knuckle duster at only 100str. I also want to find formulas for dual wield and double attack chance. This is surprisingly hard to find