Taxing

[Psycho]

I did some testing and:

Without any taking of provinces:

Treasury(i+1) = Treasury(i) + income(i) - upkeep(i+1)

That is, each turn treasury is increased (or decreased) with the difference of last turn's income and this turn's upkeep.


When nation A takes a province from nation B:

Nation B gets income reduced by the amount the taken province earned (as expected).

Nation A gets income increased by an amount that I could not determine. It is not:
a) the amount nation B lost
b) the amount that the province shows as income when captured
c) the amount of income the province would have with the new owner and taxes set to what the previous owner set (including taxes set at 100%)