[quote=@Fabulous Knight]
[@Vec]Wait, doesn't this mean you get a net benefit in might points over normal rate?
[/quote]

The base MP per turn is 4, without any Holy Sites/worshipers etc. In each of the four stages he is able to generate MP, he gets that base multiplied by the percentage. In case there are holy sites/worshippers etc, the might they generate is added after the multiplication.