. How are margin calls calculated? Margin calls are calculated on the basis of the value of the securities in the account, the amount of money borrowed, and the margin requirements set by the broker. The margin requirement is usually expressed as a percentage, and the investor must maintain a minimum level of equity in his account equal to the margin requirement multiplied by the v... https://www.fbsedu.in/static/js/main.59b6eaac.js:2:109856