Tammy Jackson purchased 100 shares of All-American Manufacturing Company stock at $31.50 a share. One year later, she sold the stock for $38 a share. She paid her broker a $28 commission when she purchased the stock and a $42 commission when she sold it. During the 12 months she owned the stock, she received $160 in dividends. Calculate Tammy's total return on this investment (Round intermediate calculations and final answer to 2 decimal places.) Total return