A couple questions, SE: V & IV

[Tanus]

Thanks. I guess I'll just have to keep plugging at it and see if I can figure it out.


And from there - another question: How are maintainance reductions calculated? From my own testing, it doesn't appear to be strictly multiplicative, and is obviously not additive.

Can get these reductions from achievements, population modifiers, and crystalline tech, but the numbers just aren't working for me.