Guys,
I have read somewhere and I just don't remember where, searched my down loaded guides and info could not find. I seem to recall using a simple
.12 X pop size would give you the troops you need to maintain PO 80% figure. 24000 pop X .12= Garrison of 2880 men or 12 units of 0f 240 peasents on huge setting. I am no math wiz but using .12 factor with pop size works.