Converted damage has increases to one type applied to both types?

[bbseal]

Hi - I'm sure this is me failing to understand something, but I'm trying to learn to scale damage by starting with simple calculations for basic item and skill configurations.

In this example, I have a single example bow and one skill, Ice Shot, which converts some physical damage to cold damage. To observe the effect of different modifiers, I'm manually adding them to the Configuration pane and checking the results in the Calcs pane.

If I add modifiers to cold damage, such as "10% increased Cold Damage" or "10% increased Elemental Damage", and check the MH Hit Damage for Cold, they appear to apply twice. Once for the base Physical Damage before it is converted to cold, and then again for the base cold damage. I would have expected these elemental modifiers to only apply once, to the sum of the converted physical damage to cold and the base cold damage. The Wiki and Mark_GGG comments seem to suggest that conversions are done before any modifiers are applied, but in this case the modifiers appear to be applying before the conversion.

https://pobb.in/nq3M7YhI_BEX

[QuickStick123]

You seem to misunderstanding something this breakdown is saying you have 66.12 to 200.1 physical damage dealt. If we apply the multipliers (cold) to it you apply all its multipliers to you would deal 73 to 220. You then only deal 60% of this or 44 to 132 which is the converted damage number (which includes all multipliers). Then we multiply our base cold damage and add the converted number to the final cold damage. This gives us the correct number just with a weird order / breakdown. This information may be more understandable in a different format so If you have a better suggestion feel free.

[bbseal]

My question is why the 10% increase is applying to the base physical damage at all, before it's converted. Why would modifiers like "10% increased Cold Damage" apply to both the physical base damage and the subsequent cold damage, when it sounds like the modifier should only be applying once.

All the numbers are correct, so you can see it's applying twice. The base physical damage receives the modifier and then 60% is converted to cold ((66.12 x 1.1 = 73 and 200.1 x 1.1 = 220) x 0.6) resulting in 44 to 132. The base cold damage receives the modifier as well (130.5 x 1.1 = 143.55 and 196.62 x 1.1 = 216.282), add the converted cold damage, and you get the total.

The UI looks fine to me, I just don't understand why the modifier is applying twice.

[QuickStick123]

The presentation is confusing.
200.1 * 1.1 * 0.6 = 132 (Phys as cold)
196.62 * 1.1 + 132 = 348 (Total Cold)
So you can see it only applying once.