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
($ in millions)	2011			2012			2013			2014
Total assets	$	14,570.4		$	14,152.1		$	15,203.3		$	15,615.9
Common stockholders equity		7,706.6			7,885.4			7,910.3			8,075.1
Total debt		4,282.0			3,660.1			4,409.9			4,584.4
Sales					19,429.3			19,052.0			21,105.1
Net income					593.1			585.5			815.8
Interest expense					162.4			146.9			169.3
Income tax rate					0.37			0.37			0.37

Required:

Calculate Nucors ROA for 2012, 2013, and 2014. Decompose ROA into operating profit margin and asset turnover components.

Has Nucors profitability changed over the three years?

Calculate the rate of return on common stockholders equity for 2012, 2013, and 2014.

Complete this question by entering your answers in the tabs below.

Required 1

Required 2

Required 3

Calculate Nucors ROA for 2012, 2013, and 2014. Decompose ROA into operating profit margin and asset turnover components. (Round your answers for "ROA" and "Operating profit margin" to 3 decimal places and "Asset turnover" to 2 decimal places.)

	2012	2013	2014
ROA
Operating profit margin
Asset turnover

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 equity