Make sure to either Make a Copy or Download the document and open in Excel or Google Sheets to edit for yourself to change the values.

(Magnitude/100) x ((Item Level x 0.12)+extraDamage) x DamageBuffs x (1+Power) x (1+(Combat Adv-targetsAwareness) x (1+targetsDeflectChance x (1/(1+(targetsDeflectSev-Accuracy)-1))) x (1+(Crit Strike x (Crit Sev-targetsCritAvoid))) x (1+Str or Int) x debuffs x (1/(1+targetsDefense)) x other unique stuff)

your characters total Item level shown on your character sheet. This is scaling for DPS. if you are a tank or healer you need to adjust the formula

the total of the extra "damage" bonuses you have, like from weapons. it will also show on the tooltip of the "damage" stat

the total power % on your character sheet

the total accuracy % on your character sheet, set to 90% when not checking deflects ingame (bent down arrow on damage hits)

the total combat advantage % on your character sheet, set to 0 if not flanking your target (sword icon on damage hits)

the total critical strike % on your character sheet, set to 100% when only checking critical hits ingame (lightning icon on damage hits)

the total critical severity % on your character sheet

the total physical or magical boost % on your character sheet. it depends what ability you use

the value of damage boost listed on your combat enchant

the total of all your damage buffs, remember to take into account temporary bonuses and situation bonuses, not everything displays on your character sheet

the total of the effects your target has, the increase the damage it takes or reduces the targets damage resistance

some edge cases are multiplicative damage boosts, like from Drizzt, it goes here

this is for when you know something deals a certain amount of your overall damage and you want to compare it to a build that doesn't use it, or a diffferent amount

the magnitude of the power you are using

the enemies defense, starting at 50% which can be reduced by certain effects like Armor break

the enemies deflect chance, starting at 50% which can be reduced by certain effects like slowed reactions

the enemies deflect severity starting at 90% which can be reduced by certain effects like the Dice artifact

the enemies Awareness starting at 0% and goes into the negative by effects like Dulled Senses

the enemies critical avoidance starting at 0% and goes into the negative by effects like from the Red Dragon mount

the everage damage you can expect from the ability

the difference in damage you can expect between the two builds