To find out how much commission is being charged when you buy/sell, take a look at the images below.
After you Buy/Sell an instrument/pair you will need to be on the Trade section as shown below, just look to your right and see how much commission was taken.
1. Tap on the terminal button as shown below:
2. Tap on the instrument/pair so you can see how much commission has been taken.
3. You will see the commission taken on the bottom right side of the instrument/pair in question.