margin 10. (2 pts) An investor buys 100 shares of Altria at $58 per share on The initial margin requirement is 50%, and the maintenance margin requirement is 30% a. The price of Altria drops to $50. What is the actual margin now? b. The price of Altria declines further to $45. Show why a margin call is either required or not. The price declines further to $40. Show calculations as to why margin call is generated. d. What is the amount of the margin call in Part c? . a