You are considering investing $830 in Higgs B. Technology Inc. You can buy common stock at $24.41 per share; this stock pays no dividends. You can also buy a convertible bond ($1,000 par value) that is currently trading at $830 and has a conversion ratio of 28. It pays $49 per year in interest. If you expect the price of the stock to rise to $32.04 per share in one year, which instrument should you purchase? The holding period return on the purchase of the common stock would be %. (Round to two decimal places.)