The smartass answer is that you are trading 200:1. I am guessing you did not mean this as a trick question so I am assuming you wish to understand how much margin you have used.Originally Posted by ;
On a mini account in 100:1 you set aside $100. At 200:1 you are setting aside $50/contract x 6 mini lots = $300. You can divide $300 by your account value to determine the true fractional margin you have used. For me personally, it usually comes out to around 7:1 - 10:1.
Incidentally, welcome to nigeriaforextrading.