I started a turn with 4400 in projected income.
I liberated a region, made a trade agreement with them, fought 4 battles which reduced my troop upkeep, ended a rebellion, made a few builds and repairs, and at the end of the turn my projected income had dropped to 3300.
Nothing in the ministers category changed. I added no regions. The things I did should have resulted in a higher projected income, shouldn’t they?
What aspects of the economic game am I missing?