Max drawdown overstated

I have 2 futures strategies.

Both hold overnight NQ , from 4748.5 and 4749.25.
NQ overnight lowest price was 4732.
So the max unrealized loss is $330 for Trading emini (equity 7300)and 345 for Trend futures(equity 8000).
So drawdown for Trading emini would be 4.5%, but I got 15.2%.(yesterday was 13.2%)
Drawdown for Trend futures would be 4.3%, but I got 5.6%.(yesterday was 2.2%)