Jean has a margin account with a balance of $50,000. If the initial margin requirement is 50 percent, and Nicora is currently selling at $50 per share: How many shares of Nicora Co can Jean buy? If the maintenance margin is 25 percent, to what price can Nicora Co stock price fall before Jean receives a margin call? . what would be return if Jean sells shares at $60 after and broker charges 50 dollars per each transaction (ignore interest on debt and dividends)