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 ??
I believe that with a market that is constantly changing and incredibly difficult to predict at the moment, successful business is extremely difficult. It can be seen that the prices of bitcoin and altcoin are constantly adjusting. So if you do not analyze correctly, do not have a specific investment plan, you will certainly fail to trade and the damage will be huge.The %came from me watching livecoinwatch.. Cex.io doesnt have the accurate price ??