Problem:
Wallace Davis purchased 520 shares of Dell stock at $30.50 a share. One year later, he sold the stock for $27 a share. He paid his broker a $38 commission when he purchased the stock and a $40 commission when he sold it. During the 12 months he owned the stock, the company paid no dividends.
Required:
Question: Calculate Wallace's total return on this investment.
Note: Please provide through step by step calculations.