You purchase 200 shares for $70 a share ($14,000), and after a year the price rises to $80. Calculate the percentage return on your investment if you bought the stock on margin and the margin requirement was (ignore commissions, dividends, and interest expense): 20 percent. Round your answer to one decimal place. % 45 percent. Round your answer to one decimal place. % 85 percent. Round your answer to one decimal place. %