Margin level is the percent ratio of your account equity to used margin. It is calculated as:
Margin level = (equity ÷ used margin)×100
If your account equity is $8,000 and your used margin is $2,000 then your margin level is 400%. Margin level is very important because if it falls to 100% you will not be able to open new positions, and if it falls more, some of your positions may be forcibly closed (see "Margin Call Level" and "Margin Liquidation Level" below). If your margin level is getting close to 100%, you can raise it, either by adding funds to your account to increase equity or by closing some positions to reduce used margin.