Under Armour, Inc. is an American supplier of sportswear and casual apparel. Following are selected financial data for the company for the period 2009â2013.2009 2010 2011 2012 2013Profit margin (%) 5.6 6.5 6.7 7.1 7.1 Retention ratio (%) 100.0 100.0 100.0 100.0 100.0 Asset turnover (X) 1.6 1.6 1.6 1.6 1.5 Financial leverage (X) 1.7 1.7 1.9 1.8 1.9 Growth rate in sales (%) 18.7 24.8 39.0 25.2 27.7 Calculate Under Armourâs annual sustainable growth rate for the years 2009 through 2013. (Round your answers to 1 decimal place.)