You purchase 100 shares for $60 a share ($6,000), and after a year the price rises to $70. 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): 25 percent. Round your answer to one decimal place. % 65 percent. Round your answer to one decimal place. % 75 percent. Round your answer to one decimal place. %