FxPro cTrader clients are charged a commission fee of 45USD for every 1 million USD traded upon opening a position, and 45USD upon closing the position.
Thus you will be actually charged 90 USD for every 1 million USD traded round turn.
As 1 lot equals to 100,000 units, you will be charged 9 USD per 1 round turn lot of transactions.
If you like to consider the total costs of trading in FXPro cTrader trading platform, the minimum cost would be 11 USD per 1 lot traded(minimum spread 0.2 pip = 2 USD per 1 lot, and 9 USD as extra commission).
Some traders might see the 9 USD of extra commissions as a bit too much though, it is actually a reasonable cost for trading on STP trading environment.
Cost of ECN trading environment
ECN(Electronic Communication Network) is an unique trading environment provided by cTrader.
The developer of cTrader, Spotware also mentions that as there is a trading platform restriction, all orders will be sent to broker’s liquidity providers without any interference.
Your orders are to be also matched with other traders’ orders electronically, hence the execution quality should be maximized with the system.
It is simply the most fair trading environment where traders can trade without worrying about brokers manipulating or interfering to cause losses to traders’ accounts.