Molten Strike - Avatar of fire.

If I have Molten strike (60% damage converted to fire) in gem (so it get preference and is not scalated...
And I also have avatar of fire...
50% converted to fire...

Am I converting 60% and then 50% of the non converted damage?
wich would be 80% of damage converted...
Or am I convertirn 100%?

7 Years and this is still not clear to me.

With Molten strikes 60% physical to fire and avatar of fire's convert all (phys,cold,lightning) you are converting 100% of physical damage to fire and 50% of any cold and lightning damage you may have.

in this case 60% + 50% = 100% with the extra 10% doing nothing.
So any additional physical damage will be fully converted.
Any additional fire damage will be added as per normal, but additional cold and lightning damage will only be added at 50% of value.
Chaos damage will not be added and count as 0 damage.

That were always my thoughts about this.
However POB seems to not be supporting my theory...
However after some tests we can assure that now.

https://i.imgur.com/bcEllho.png 0001 - 80% amuleto 000% Molten 00% Avatar
https://i.imgur.com/e3JnM4r.png 0002 - 00% amuleto 060% Molten 50% Avatar
https://i.imgur.com/9h06kDy.png 0003 - 00% amuleto 050% Molten 50% Avatar
https://i.imgur.com/a7IzKgu.png 0004 - 00% amuleto 100% Molten 00% Avatar
https://i.imgur.com/m1C8etk.png 0005 - 00% amuleto 100% Molten 50% Avatar (¿?)
https://i.imgur.com/Jf3dStr.png 0006 - 40% amuleto 060% Molten 00% Avatar

There must be some kind of other damage that I loose when I use avatar of fire, but doesent seem to be related to conversion from phys to fire...
So I guess 100% is correct in all the scenarios.

it looks like it is some kind of interaction with the avatar of fire keystone adding the deals no non fire damage vs the non avatar of fire 100% conversion calculations.
PoB can act weird sometimes as it calculates buffs, penetration and other mechanics into the damage numbers at all times and this would include avatar of fires no other damage bit.

That's why the pictures that have avatar of fire allocated are all the same and the others differ because of non fire damage being calculated in somewhere.
I think it is because of tempest shield being assumed to be adding damage in some way.