the one we had at my in-laws estate sale worked on percentage. he was cracking me up this couch no one would bid on he put a dollar bill under cushion than asked for a bid of 50 cents well he sold it i was glad that i didn't have to get rid of it , this thing was about 12ft long. he did that a few times or would keep adding items to the lot up for auctoin till someone bid he sold almost everything. stuff you thought would sale good was about given away then other stuff i thought don't these people know they could go buy that new cheaper than that. you really never know. go to a few local auctioneers auctions and get one with a good personallity