One more thing. I have 9 provinces out of which my inner colony was having approx.9 million negative gold for atleast 20 days because I went out of the city.But when I returned and recovered from negative gold in 4-5days I found the population growth in that province dropped to 17.What to do?
All provinces have their max population limit. Many topics about that in question forum.
Research medicine. Build more Granary. Upgrade Bureucracy to 100% effiency.