Quick reference card: Contract trading fees
Contract trading fees are calculated based on the notional value of the trade—the execution price multiplied by the quantity—not the margin used.
If you’re not in a hurry to get filled, consider placing a limit order and waiting for it to execute. This can usually save you some fees.
For a current reference: $BTC is currently priced at 82659.99 (24h +0.96%).

#BTC

Personal notes, not specific buying or selling advice.