17- Under Armour, Inc. is an American supplier of sportswear and casual apparel. Following are selected financial data for the company for the period 2009-2013. Calculate Under Armour's annual sustainable growth rate for the years 2009 through 2013 2009 2010 2011 2012 2013 Profit margin (%) 5.5 6.4 6.6 7.0 7.0 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 (%) 19.7 25.8 40.0 26.2 28.7