Mudrex do not charge any fee from your profits. So, any gains you make are yours.
NOTE- Their would be a minimal Maker-Taker fee.
Maker-taker fees are transaction costs that occur when orders are placed and filled. They are the fees an exchange charges, or reimbursements, in exchange for the use or provision of liquidity on the platform’s order book.
For any other query, please raise a ticket!