I am trying to put together a series of small tweaks for balance in retribution and wanted to start with economy, since I've noticed a significant lack of funds in the latest expansion. However, I can't get the calculations straight for trade route value.
My idea was to have the trade routes provide a percentage of gross income of each port instead of the flat population value listed in the wikihttps://galciv3.gamepedia.com/Trade
However, in the TradeRouteDef.xml, you can see <PlanetIncomePercentage>0.03</PlanetIncomePercentage> or a line similar in each definition of the trade routes.
So my question is this: is the game already applying a percentage based forumla to trade, or is it just counting population?