Quote from Mercor:
There is no margin in futures. It is a performance bond. A deposit to cover any potental move the next day.
One gold contract 100oz. at $900.00 an oz. is worth $90,000.
The exchange may require a minimum of $3,000 everyday to hold the position for one more day.
You still have a $90,000 investment. Treat it like that. Use the leftover $87,000 to earn more somewhere else.
The return on your futures contract should be measured against the total value of the contract ($90,000) and not just the daily deposit($3,000).