The average slave price is 150s, add or subtract accordingly.
Race
Human +0
High Elf +80
Wood Elf +80
Fae Elf +200
Drow +80
Dryad +80
True Dwarf +10
Gnome +70
Leprachaun +70
Feral-Shifter +50
Mini-Shifter +100
Appar-Shifter +50
True Mage +50
Sorcerer +50
Necromancer +50
True Orc -10
Goblin +10
Imp +50
Werewolf -80
Werecat -80
Angel +200
Demon +100
Incubus +150
Succubus +150
Anthro +150
True Fairy +80
Pixie +80
Sprite +80
Centaur +100
Mermaid +100
Drider +100
Neko +100
Inu +100
False Doubutsu +100
Vampire -60
Ghost -60
Halfbreed = The average of the two race's prices.
Age
Child (between the ages of 12 and 15) +100
Adolescent +0
Adult -20
Middle-Aged -50
Old/Senior -80
Apperance
Ugly -80
Iffy -70
Average +0
Fairly Pretty +10
Cute +50
Pretty +60
Beautiful +70
Breathtaking +80