Old economy traders opened an account to short sell 1,200 shares of internet dreams at $44 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 $44 to $56, 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 number.) b. if the maintenance margin requirement is 30%, will old economy receive a margin call? no yes 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.)