So lets say target is in Max Gain range, both kd's in Normal Stance, what is the ratio for Massacres...

From what I understand it isn't %pez+%wiz+%thieves killed = 100%
it's more along the lines of
x% of target provinces total peasant population
x% of target provinces total wizard population
x% of target provinces total thieves population

I could be wrong, but does anyone know the formula and numbers?