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.)