Suppose you purchase 127 shares of Abbott Labs (ABT) at $46 per share, 233 shares of Lowes (LOW) at $22 per share, and 270 shares of Ball Corporation (BLL) at $53 per share. Suppose over the next year, Ball has a return of 15.9%, Lowes has a return of 15.1%, 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.