Unit upkeep cost balancing

[Garnier]

You can also change the import number, from 20(%) to at least 100(%) (I have only gone up to 60though), this will make your trade network boost the income massively for all factions you trade with.

What file is this in? I don't see it in the build_prod.

Also I'd like to decrease trade income as well, if you'd tell me how.

EDIT: I found it, in startpos of course..