Opportunity = 1 + (0.1 * Opportunity Rank)
Offhand Reduction = 0.5 + (0.05 * Dual Wield Specialization Rank)
Lethality = 0.06 * Lethality Rank
Poison Bonus = 1 + (0.2 if Poisoned Target)
Average Weapon Damage = (Weapon Minimum Damage + Weapon Maximum Damage) / 2
Modifier = (Attack Power / 14) * 1.7
Base Damage = Average Weapon Damage + Modifier
Mainhand Base Damage = Base Damage + Mutilate Bonus Damage
Mainhand Damage = Mainhand Base Damage * Poison Bonus * Opportunity
Mainhand Critical Damage = Mainhand Damage * (2 + Lethality)
Offhand Base Damage = (Base Damage * Offhand Reduction) + ( Mutilate Bonus Damage * (1 + (.1 * Dual Wield Specialization Rank)))
Offhand Damage = Offhand Base Damage * Poison Bonus * Opportunity
Offhand Critical Damage = Offhand Damage * (2 + Lethality)
Minimum Mutilate Damage = Mainhand Damage + Offhand Damage
Maximum Mutilate Damage = Mainhand Critical Damage + Offhand Critical Damage