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Tax Rate

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See also Evony Guides

The optimal Evony tax rate is 50%.

Population = [1 - (0.01 x Tax Rate)] x Max Population
Tax Income = (0.01 x Tax Rate) x Population

so Tax Income = (0.01 x Tax Rate) x [1 - (0.01 x Tax Rate)] x Max Population

It's simplifying time!

TI = (0.01 x Tax Rate) x [1 - (0.01 x Tax Rate)] x Max Population

TI = (MP / 100)TR x (1 - 0.01TR)

TI = (MP / 100)TR - (MP / 10,000)TR^2

Tax Income = (Max Pop / 100) x Tax Rate - (Max Pop / 10,000) x Tax Rate^2

If you plug in any max population, it always comes out with a tax rate of 50 being the best.

You could also graph it as a parabola, with TI= -(MP / 10,000)TR^2 + (MP / 100)TR3

Don't forget after you have completely developed your city, changing your tax rate to a lower percentage would increase Loyalty and in turn, help during attacks from determined offenders. Once your Loyalty reaches zero the people will riot and Public Grievance will increase. And i no time your city will fall.
 
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