What is the data in the Account tab on MetroTrader?
The account tab is a one-stop shop to see account balances, margin requirements & utilization, and unrealized P&L.

Balance = account balance.
Equity = Balance +/- Unrealized PL
Net Liquidation = balance +/- Unrealized PL
Future Available Funds = Equity - Initial Margin.
Future Maintenance excess = Equity - Maintenance Margin.
Market Value Long = notional value of the contract
Market Value Short = Currently blank because there are no current short positions, but is the notional value of the contract, as well.
Initial Margin = sum of the intraday initial margin (if the product has an intraday margin value) of the total position.
Maintenance Margin = sum of the Exchange-listed maintenance margin of the contract(s) held in the position.
Overnight Initial Margin = sum of the Maintenance Margin of the position(s) * 1.10.
Equity - Margin = Net Liquidation/Overnight Initial Margin x 100. If this value =< 8% the account will be auto-liquidated.
Unrealized PL = (marked-to-market price of contract - avg fill price * contract multiplier. Will be in () if negative.