Under Armour, Inc. is an American supplier of sportswear and casual apparel. Following are selected financial data for the company for the period 20092013. 2013 7.0 Profit margin (%) Retention ratio (%) Asset turnover (X) Financial leverage (X) Growth rate in sales (%) 2009 5.5 100.0 1.7 1.8 19.4 2010 6.4 100.0 1.7 1.8 25.5 2011 6.6 100.0 1.7 2012 7.0 100.0 1.7 1.9 25.9 100.0 1.6 2.0 28.4 2.0 39.7 a. Calculate Under Armour's annual sustainable growth rate for the years 2009 through 2013. (Round your answers to place.) Answer is complete but not entirely correct. Year Sustainable Growth Rate 2009 13.2 % 2010 15.4 % 2011 17.8 % 2012 17.9 % .....2013.....................17.6. 1%