What is Position Margin?

Account Margin:
The total margin of the account, including available margin, used margin, and unrealized P&L.

Available Margin:
The portion of the margin that can be used for opening new positions.
Available Margin = Wallet Balance + Unrealized P&L in Cross Margin - Used Margin

Used Margin:
Margin used for open orders = Order Price * Order Quantity / Leverage
Margin used for open positions = Average Entry Price * Position Quantity / Leverage

Account Maintenance Margin:
The sum of the maintenance margin for all positions. When the total maintenance margin equals the account margin, a forced liquidation is triggered.
∑Total Maintenance Margin = Average Entry Price * Position Quantity * Maintenance Margin Rate