My broker states on their website how their margin works.
1 to 1 – Less than $500
2 to 1 - $500 to $999
4 to 1 - $1000 - $4999
6 to 1 - $5000+
At the beginning, I had $1000 than lost on some trades and went to $400. However, my next trade I was able to trade SKLN for $2500 with just $400...