calculate the percentage return on your investment if you bought the stock on margin in the margin requirement was.

You purchase 90 shares for $40 a share ($3,600), and after a year the price falls to $35. 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): a. 15 percent. Use a minus sign to enter the amount as a negative value. Round your answer to one decimal place. b. 60 percent. Use a minus sign to enter the amount as a negative value. Round your answer to one decimal place. % c. 85 percent. Use a minus sign to enter the amount as a negative value. Round your answer to one decimal place