Buying on Margin :
Assume that Vogl stock is priced at $50 per share and pays a dividend of $1 per share.
An investor purchases the stock on margin, paying $30 per share and borrowing the remainder from the brokerage firm at 10 percent annualized interest.
If, after one year, the stock is sold at a price of $60 per share, what is the return to the investor?