Problems $6-10$ Determining profitability $($LO$6-4)$

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. In $2017,$ Nucor's net income was higher by $$175\mathrm{.}2$ million because of a one$-$time effect of the Tax Cuts and Jobs Act.

Source: Nucor Form $10-$Ks for $2015-2018.$

Required:

In the following analyses, ellminate the one$-$time net income effect of the Tax Cuts and Jobs Act on $2017$ s results.

Calculate Nucor's ROA for $2016,2017,$ and $2018.$

$2$ Decompose ROA into operating profit margin and asset turnover components.

$3.$ Has Nucor's profitability changed over the three years?

$4.$ Calculate the rate of return on common stockholders' equity for $2016,2017,$ and $2018.$

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 $2016,2017,$ and $2018.($Do not round intermediate calculations.

Round your answers to $2$ decimal places.$)$