What is balance, equity, margin, free margin, margin level of account?

Balance – current funds on account not including Floating P/L (profit / loss of open positions) 

Equity = Balance + Floating P/L 

Margin – total margin required to maintain all open positions. Calculated as per margin calculation logic. 

Free Margin = Equity – Margin 

Margin Level % = (Equity / Margin) x 100