The commission on the previous site was found with the following formula: 6.7 x e^(-p/6) + 4 where p is the price of the listing in Bitcoins. So, for example, a 10 btc listing had a total commission of 5.27%, or 0.5265 btc. To give a little more perspective, at the July 10, 2013 exchange rate of $75 per btc a $2000 item cost $2028.07. Libertas