[Help] Where do I change trade routes values?

[Planas]

I'm looking to change international trade routes to give them more bonus based on the amount of gold/faith/science/culture generation of the origin city.

Let's say my city produces 100 science each turn, I would like the destination to receive 10% (if it's city states) and 2% (other civs cities), or, a fixed value based on the districts/buildings of the origin city, or, the adjacency bonuses of each districts.

I looked into the files but couldn't find anything that changes values of trade routes.

I'm also new to modding, I mainly change values within my own files, doesn't know how to do the fancy stuff yet.

 

[dagriggstar]

District related stuff is in districts.xml under the table <District_TradeRouteYields>

I'm pretty sure everything else you need to use modifiers. I don't think what you're asking about is possible, but I could be wrong.

 

[Planas]

WoW don't know how I miss that one, thanks a lot, it's not exactly what I was looking for but will do for now.

 

[Planas]

So after a test, this is what happens, it change the values that goes to me not to the destination :/