Old Economy Traders opened an account to short-sell 1,000 shares of Internet Dreams at $55 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 $55 to $62.50, and the stock has paid a dividend of $2.20 per share.

a. What is the remaining margin in the account?

b. What is the margin on the short position? (Round your answer to 2 decimal places.)

c.	What is the rate of return on the investment? (Negative value should be indicated by a minus sign. Round your answer to 2 decimal places.)