You can check your trading fee rate here.
Notes:
When you place an order that trades immediately before going on the order book, either filling partially or fully, those trades will be "taker" trades.
Trades from market orders are always Takers, as market orders can never go on the order book. These trades are "taking" volume off of the order book, and therefore called the "taker."
When you place an order that goes on the order book partially or fully, such as a limit order, any subsequent trades coming from that order will be as a “maker.”
These orders add volume to the order book, helping to "make the market," and are therefore termed the "maker" for any subsequent trades.
Commission Fee = Notional Value * Fee Rate
Notional Value = (Number of Contracts* Contract Size) / Trade Price
For example, a regular user's maker commission: 0.02%; taker commission: 0.05%
Buy 10 BTCUSD 0925 quarterly contracts using a market order:
Notional Value = (Number of Contracts * Contract Size) / Opening Price
= (10 contracts * 100 USD) / 10,104 USD
= 0.09897 BTC
Taker commission fee: 0.09897 * 0.050% = 0.000049485 BTC
After the price increases, sell 10 BTCUSD 0925 quarterly contracts using a limit order:
Notional Value = (Number of Contracts * Contract Size) / Closing Price
= (10 contracts * 100 USD) / 11,104 USD
= 0.09 BTC
Maker commission fee: 0.09 * 0.02% = 0.000018 BTC
Commission Fee = Notional Value * Fee Rate
Notional Value = Number of Contracts * Trade Price
For example, regular user's maker commission: 0.02%; taker commission: 0.05%
Buy 1 BTC worth of BTCUSDT contract using a market order:
Notional Value = Number of Contracts * Opening Price
= 1 BTC * 10,104
= 10,104
Taker commission fee is paid: 10,104 * 0.05% = 5.052 USDT
After the price rises, Sell 1 BTC worth of BTCUSDT contract using a limit order:
Notional Value = Number of Contracts * Closing Price
= 1 BTC * 11,104
= 11,104
Maker commission fee is paid: 11,104 * 0.02% = 2.2208 USDT