1. You deposit $100,000 cash in a brokerage account and short sell $200,000 of stocks on margin. Later, the value of the stocks held short rises to $250,000. What is your account margin in percent?

1. You deposit $100,000 cash in a brokerage account and purchase $200,000 of stocks on margin by borrowing $100,000 from your broker. Later, the value of your stock holdings falls to $150,000. What is your account margin in percent?