Hello I dont understand I bought for 4000 Eur one hour ago of Ethereum when it was going up, it stayed around the 10-20%, it started to decrease 5 minutes ago so I sold it and now cex.io just gave me 3500eur for it... wtf... 
The %came from me watching livecoinwatch.. Cex.io doesnt have the accurate price ??
The %came from me watching livecoinwatch.. Cex.io doesnt have the accurate price ??
You made the wrong way margins, taking high risks of earning may lead also to high loses.