1. John short sells 300 shares of ABC at $ 20 per share. The initial margin requirement is 50%, and it pays no interest. The stock pays $ 2 per share. A year from now the price is $ 25. What is the dollar amount left in the account?

2. A $1,000 par value bond with five years left to maturity pays an interest payment semiannually with a 9 percent coupon rate and is priced to have a 8.3 percent yield to maturity. If interest rates surprisingly increase by 0.5 percent, by how much would the bond’s price change? (Do not round intermediate calculations. Round your answer to 2 decimal places. (e.g., 32.16))