Love me some maths.
Assuming anyone even reads this far into the comments. Far as I can tell, the Auto-attack formula is (Weapon Speed is as listed on the weapon, ie before haste/attack speed modifiers):(Attack Power / 6 + Weapon Damage) * Weapon Speed * Damage MultiplierOr, looking at it another way; assuming you only care about the average, just use the ability formula(Attack Power + Weapon DPS * 6) * AP Coefficient * Damage Multiplier...with an AP Coefficient of (Weapon Speed / 6).One other thing to note though. Currently (as of 8/4/18), attack power bonuses DO increase weapon based damage for abilities, but NOT for white attacks. So when calculating ability damage when you have Battle Shout (+10% attack power) the formulas become:Ability Damage = (Attack Power + Weapon DPS * 6 * 1.1) * AP Coefficient * Damage MultiplierWhite Attack = (Attack Power / 6 + Weapon Damage) * Weapon Speed * Damage MultiplierAt least as far as the API is concerned. I suppose it could work correctly behind the scenes and just be reported incorrectly to the in game API, but someone would have to test.