Lana and Ali purchased 150 shares of Cisco Systems stock at $18 a share. One year later, they sold the stock for $25.40 a share. They paid a broker a $32 commission when they purchased the stock and a $40 commission when they sold the stock. During the 12-month period the couple owned the stock, Cisco Systems paid dividends that totaled $0.24.

Calculate the Lana and Ahmad' total return for this investment.