Formular For Crafting Xp?

Hey I am doing professions for a loooong time.

My question recently is, is there a confirmed formular where I can calculate the xp I am getting per craft?

For example I craft a necklace:

with t1 mats (so in summary 24 mats without speed bomb)
with 6 ivory tusks (t1 ingredient)
with xp bomb (x2.0 xp)
I am level 124
getting 121720.692 xp per craft in average (with xp bomb)
the xp range is 97806 - 146526 (with xp bomb)

Also keep in mind I am getting less xp the higher my Jeweling level is.

 

I don't know if this is what you're asking for, but it might help

 

Nope, I ment an actual formula to calculate crafting xp

 

Since noone gave an actual answer yet, I'll give you my hypothesis and rules of thumb, neither of which are actually confirmed.

First off, there's a base material xp-range you get when you craft something. This amount is the same for all crafting professions at their levels except for scribing, where it is a bit less. This is the xp you'd get from just using T1 mats to make something.

Each ingredient you use adds an additional xp-range to this base. Each ingredient does so seperately, it doesn't matter where it's placed in the crafting grid and ingredient effectiveness doesn't effect it.
Each ingredient also has a seperate xp-range it gives. As a rule of thumb I Always say that 1 star = 10 levels of xp. But that's not really all that accurate. Two lvl 70 ingredients with 0 stars would still have a different xp-range they add to the base.

The crafting guide from SmileAndWaveBoyz which has been linked above says that better materials work multiplicatively, and from what I've seen, I agree. I think that T3 mats give a little less than 5x the xp. But never tested that.
He says that, when it comes to materials, 1 t2 craft = 2 t1 crafts and 1 t3 craft = 5 t1 crafts worth of xp. So the material multipliers would be:
T1 mat = 1
T2 mat = 2
T3 mat = 5

So the formula would be:

(basemat xp + ingredient xp (seperate for each ingredient you use.)) x material multiplier = totalxp

For example, making this potion with xp-ranges completely made up:
basemat xp lvl 1-3 (or also quite likely to be 1-9) = 8-12xp
ingredient xp brown mushroom = 2-4p
ingredient xp red mushroom = 2-3xp (x4 = 8-12xp)
ingredient xp royal cake slice = 30-38xp
T2 mats --> material multiplier = 2

so totalxp = (8-12 + (2-4 + 8-12 + 30-38) x 2 = 48-66 xp.

Again, these numbers are just what I guess the ranges would be for the ingredients, and the xp-ranges ingredients have are kinda like the amount of durability they take away. Although there's a correlation between their level and the amount of stars they have, and probably even a baseline, it differs between each ingredient.
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