Let's talk about contract trading fees:
A Maker order is an order that enters the order book and waits to be filled, providing liquidity to the market. A Taker order immediately matches with an existing order in the order book.
Fees are calculated based on notional value. The higher the leverage, the larger the fees for opening and closing a position as a proportion of your margin. For example, assuming a fee of 0.05% for both opening and closing, the total fees at 10x leverage would be about 1% of your margin.
$BTC 82637.52(+0.96%)

These are just opinions for discussion; trade at your own risk.