guys i have a question, I extracted Monero of Suprnova, and I gained
0.13488397 XMR
but going to see about me poloniex I received these 0.06488000 XMR
but where the rest of the profits are over?
I realized now that there are 0.07000000 fee

The page indicates that the fee of 0.07 is deducted for manual withdrawals. Proof by placing an automatic withdrawal.