Economy Observations, Tips, Etc.

[Madae]

Because the 150 is a variable outcome. The tax rate is adjustable. At a 20% rate the income from 500 wealth would be 100. At 40%, 200.

I'm looking at it from 500 as the base, and the 20% is added on to it. 20% = 100 (600), 40% = 200 (700). The tax is going to you, not to someone else. You're assuming someone is taxing you, when in reality you're taxing them from whatever the base value is + the tax bonus.

This is easily solved if you just load up a game, take note of what a province makes, build something, and then see what the total amount would be after it's completed.

Or maybe you're agreeing with me and I'm just confused. Now that I look at it, I think that's the case. The way you worded it was confusing.

if you spend 10000 for a revenue increase of 500, it would take 20 turns for that 500 (once the building was completed) to pay off the 10000 by itself. Percent bonuses would factor into it afterwards, such as the 10% bonus from the geisha, which would make it 550 (and 18 turns instead of 20).

Province tax bonus (the global setting in finance) would be afterwards as well. So, yes, it would pay off sooner if you factor in everything.