Character trading option

Hello. Recently i was messing around with character trading feature and came across the prices for characters that is auto generated as min.
It puts the price way too high therefore sales are very slow.
So is there a way to sell character for alot lower price without breaking any rules?

Edit: also is it possible to remove character from marketplace or it will stay there for set amount of time when putting it up for sale?

Put some gear in bag and select "equipment only" . In that case the "minimum coins price" will be based only on the gear equipped

Yes, you can remove 1 char from sale if you change your mind later