Claire Gerber wants to buy 1,000 shares of Google, which is selling in the market for $543.86 a share. Rather than liquidate all her savings, she decides to borrow through her broker at 5 percent a year. Assume that the margin requirement on common stock is 50%. If the stock rises to $630 a share over the next year, calculate the dollar profit and percentage return that Claire would earn if she makes the investment with 50% margin. Contrast these figures to what she'd make if she uses no margin.

Calculate the dollar net profit. Round the answers to the nearest dollar.

Without Margin	With 50% Margin
$	$

Calculate the return on investment. Round the answers to two decimal places.

Without Margin	With 50% Margin
%	%