Suppose you purchase 238 shares of Abbott Labs (ABT) at $49 per share, 199 shares of Lowes (LOW) at $25 per share, and 417 shares of Ball Corporation (BLL) at $40 per share. Suppose over the next year, Ball has a return of 17.3%, Lowes has a return of 19.5%, and Abbott Labs has a return of 5.0% What is the return on your portfolio over the year? Please input your response in percent rounded to two decimal places without the percent sign