Nucor, a steel manufacturer, reported net income for Year 4 of $1,121 million on sales of $11,377 million. Interest expense for Year 4 was $29 million. The income tax rate is 35 percent. Nucor has no minority interests in its equity. Total assets were $4,492 million at the beginning of Year 4 and $6,133 million at the end of Year 4. Compute the rate of return on assets for Year 4 and disaggregate ROA into profit margin for ROA and assets turnover components.