Paladin Charges

I tried using search but came up empty-handed. Basically how are charges calculated in respect to dual-charging and how do elemental charges factor in? More interested in how it's calculated than the final product.

Thanks

Each charge's damage is first multiplied by your range. So for fire, your damage is increased to 130% of its original. Secondly, you find out if you have advantage or disadvantage to the monster. Then, you find how much elemental power your skill has (at max, it's 100%). Otherwise, it's normal calculation for weakness and resistance (150% and 75% respectively). For dual charging (fire and lightning for this example), the formula is (130% * advantage + 12.5% * advantage) * damage range. If your elemental power is less than 100% (skill isn't maxed), I'm assuming it just multiplies that percentage by the advantage instead. Unless the monster is resistant to the primary element or weak to lightning only, dual charging will always increase your damage.

 Elements from Pre-BB Formula Compilation

A = LevelDisadvantage * ElementAttribute * Charges * ArrowBomb

Level Disadvantage:
For physical attacks, LevelDisadvantage = 1 - 0.01 * dLevel,
where dLevel = MobLevel - CharLevel if MobLevel > CharLevel and 0 otherwise.

For magic attacks, LevelDisadvantage = 1.

Element Modifier:
ElementAttribute = 1 + X_i * E_i
where for each element i:
X_i = portion of the skill used that has that element, and
E_i = 0.5 if weak, 1 if neutral, -0.5 if resistant to that element.

Element examples:
Fire Arrow has X = 1 for Fire only
I/L Composition has X = 0.5 for both Ice and Lightning
Level 1 Holy Charge has X = 0.43 for Holy (see Skill Tables)

Charges:
Dual charging?

Arrow Bomb:
ArrowBomb = 0.5 for impact hits and SkillDamage% for splash hits. "Skill" for Arrow Bomb is always 1.
(As an aside, this causes critical to act as multiplicative on Arrow Bomb rather than additive.)

An entire thread on dual charging and weakness.

Cool, thanks.

I did see that thread but so much of it was written with uncertainty plus the addition of someone asking if they need to make a char in kmst to test it was off-putting.