An investor bought on margin 100 shares of Copier Corp for $85 a share. The firm paid an annual dividend of $4 a share; the margin requirement was 60% with an interest rate of 8% on borrowed funds and comissions on the purchase and sale were $75. 1) What is the % earned on the investment if stock is bought for cash (the investor didd not use margin?) 2) what is the % earned on the investment if the stock is bought on margin?