The miningpoolhub scams with the transaction fee size!Its my monero withdrawal.
No explanations about huge tx fee from the support.
16976265 2017-12-16 06:30:03 (UTC) TXFee Confirmed 47VvBUVE...4NMg9kSa n/a 0.01500000
16976264 2017-12-16 06:30:03 (UTC) Debit_MP Confirmed 47VvBUVE...4NMg9kSa f272e14d...9adee17b n/a 0.05746817



I think that transaction fee calculator is out dated.
Check that transaction from explorer
https://xmrchain.net/search?value=f272e14d7e685052944af18b46d7770b7736e741a7e68634968050149adee17b0.01175408 XMR paid to blockchain propagation.
Transaction fee goes up and down on monero depending the network. Sometimes it's bigger than 0.015 XMR too.
You would find withdrawal fee of monero is quite bigger on all exchange sites.
Monero transaction fee is expensive by its coin spec. Use auto exchange if you want to save transaction fee.
This is why most miners in monero are using auto exchange. Pool gather all amounts in one and send to exchange site.