This number might sound ridiculous to some so I will explain a bit where it comes from. A long time ago circa 2011 before Chaos split from the former place it was apart of a slave auction was held on an undisclosed planet. Jedi infiltrated the auction and sith were bidding on slaves the person selling the slaves was a Witchnof Dathomir.
Long story short the auction went chaotic and said witch ripped off both sith and jedi of around 275 million credits. Now in chaos time lime that translates to hundreds of years ago and that money has sat collecting interest all this time.
So low ball 675 million credits per head can easily be offered. This isnt taking into account all the other assets or borrowed money said person could accumulate just the low end as said witch has a business or two invests in a couple other corporations, runs a planet (though its low population) and has many other connections.
So low ball is answer 675 million credits per head. High end might take a bit to figure out. Lol