Says BTC0.00208333 which is around fifteen dollars for me. Not sure if it's the same price for everyone though.
Looks like the price is fixed. Here is a quote from theymos where he states the same price (0.00208333 BTC).
I see two transactions from you, both for 0.00018580 BTC. 0.00018580*2 = 0.0003716 BTC, which is less than the 0.00208333 BTC copper membership.