Jeffery is considering buying stock on margin. He wants to buy $240,000 in stock; he will put 30% down and borrow the remaining $168,000 at 4% per year interest. (a) if Jefferys investment goes up by 45% after one year, and he pays off his loan, how much will he make in dollars? What percent rate of return does this represent? (b) If Jefferys investment instead drops by 18%, how much will he lose in dollars? In terms of a percentage loss how much will he lose? Show your calculations by formulas or calculator.