depends which name it is lol, if its some random shit then 150-250m.
Name sales are also dependant on the seller, whether they will recover, if the acc is fresh or has recoveries or jag it's worth less.
If the acc is a 2 letter original login then it's probably 5+ years old meaning that unless you created it 5 years ago then it's been sold around on the current account making it more prone to locking/name deletion for rwt. All of these factors are (or should) be taken into account when buying a name.