Hmm ... auction charges do seem to have escalated of late. I know one auction house that has a minimum £8 (or thereabout) sellers commission witn a commission rate of about 20% anyway. So if you sell at, say, £30 you still pay the £8 rather than 20% of £30 = £6.
Buyers commission also seems to have increased as well. 10% used to be about right years ago, then it became 15% or 18% or 20% but now 23% is not unheard of.
Makes you wonder if it is worth putting items into auction or even buying from an auction ....
Cheers, Phil