Some basics for selling toons ,know what you got before you try to squeeze water from a rock.

Indy toons (Miner's)
under 10million skillpoints 200mill isk for each million sp learned
over 10million sp 250mill isk for each million sp learned
over 20million sp 280mill isk for each million sp learned
the increase is due to cost of skill books and time.....

science Toons
under 10million sp 250mill for every 1 mill sp
over 10million sp 280mill for every 1 mill sp
over 20miliion sp 300mill for every 1 mill sp

pvp pve toons
under 10million sp 210mill for every 1mill sp
over 10million sp 260mill for every 1mill sp
over 20million sp 290mill for every 1mill sp

theses are based on market cost for skill books from locations such as JITA
implants are based on same markets as Jita A& Rens
jump clones add 100mill per clone
pos soverignty toons pay 500mill per each lvl over 5.0
REMEBER the new patch lowered skills