Old Economy Traders opened an account to short-sell 1,000 shares of internet Dreams at $70 per share. The initiai margin requirement was 50%. (The margin account pays no interest.) A year later, the price of internet Dreams has risen from $70 to $82.50, and the stock has paid a dividend of $10.00 per share. Required: o. What is the remaining margin in the account? Answer is complete but not entirely correct. b-1. What is the margin on the short position? (Round your onswer to 2 decimol places.) Answer is complete but not entirely correct. b-2. If the maintenance margin requirement is 30%, will Old Economy receive a margin call? Yes. NoO c. What is the rate of retum on the investment? (Negotive volue should be indicoted by o minus sign. Round your onswer to 2 decimal places.) Answer is complete but not entirely correct