Commission paid
The total cumulative cost of transaction fees charged by the broker or exchange for executing trades. This metric reflects the direct overhead of your trading activity.
Exclusions: This value strictly represents documented fees and does not include slippage (the difference between the expected price and the actual execution price).
Note: This amount is already subtracted from the Net P&L to provide a true reflection of your "take-home" profit.
You can also find more information about commission here.