Margin is the amount of money required to open a position in your account. Margin is calculated based on the current price of the base currency against the US dollar, the size (volume) of the position, and the leverage used in your trading account. If you do not have enough equity available, you will not be able to open a position in the trading platform. The amount of free margin displayed in the trading platform is the amount you wish to use when opening additional positions.
The margin is calculated using the following formula:
Required Margin = (Current Market Price x Amount) / Account Leverage