It's 50% of eBay's commission. I just found a item... $10.75 was the closing price. eBay's commission was .94, so my commission was .47. Hope this helps hanji
Also it is very easy to get up to the 55% tier. The extra 5% does not show up on each sale, but as another item for the next month.
But this adds up quickly and if you sell higher value items the commissions can be pretty good. Plus new members of eBay can get you some nice commission if they sign up through your referral.