Old Economy Traders opened an account to short-sell 2,400 shares of Internet Dreams at $68 per share. The initial margin requirement was 50%. (The margin account pays no interest.) A year later, the price of Internet Dreams has risen from $68 to $80, and the stock has paid a dividend of $3.00 per share. a. What is the remaining margin in the account? (Round your answer to the nearest whole dollar.) Remaining margin b. If the maintenance margin requirement is 30%, will Old Economy receive a margin call? Yes No c. What is the rate of return on the investment? (Round your answer to 2 decimal places. Negative value should be indicated by a minus sign.) Rate of return %