Nucor Corporation produces steel and steel products at its eight mills and is a major recycler of scrap metal. The following data relate to Nucor for four years. Nucor Corporation (s in millions) Total assets Common stockholders' equity Total debt Sales Net income Interest expense Income tax rate 2011 2012 2013 2014 $14,570.4 $14,152.1 $15,203.3 $15,615.9 8,075.1 4,584.4 19,429.3 19,052.0 21,105.1 815.8 169.3 0.37 7,706.6 4,282.0 7,885.4 3,660.14,409.9 7,910.3 593.1 162.4 0.37 585.5 146.9 0.37 Requlred: 1. Calculate Nucor's ROA for 2012, 2013, and 2014. Decompose ROA into operating profit margin and asset turnover components. 2 Has Nucor's profitability changed over the three years? 3. Calculate the rate of return on common stockholders' equity for 2012, 2013, and 2014 Answer is complete but not entirely correct. Complete this question by entering your answers in the tabs below. Required 1 Required 2 Required 3 Calculate the rate of return on common stockholders' equity for 2012, 2013, and 2014. (Round your answers to 3 decimal places.) 2012 2013 2014 Rate of return on common stockholderS 0.0750.074 0.101 Required 2 Required 3