Consignment rates of bigger auction houses?

[truvalue123]

What are the general auction consignment rates for the larger houses? If the buyer rates are at 20% or so for most houses(Hunt is 15%), what do they charge the sellers? I've seen zero percent or cash back for graded cards, but, wondering what is out there for game used and autographs, as well as cards...Not looking for any endorsements, just some feedback through experience or otherwise...
thanks,

[seanbaseball]

10% on decent items