Please help me solve all of the requirements Zeldas, a national manufacturer of lawn$-$mowing and snow$-$blowing equipment, segments its business according to customer type: Professional and Residential. Assume the following divisional information was available for the past year $($in thousands of dollars$)$:

$($Click the icon to view the information.$)$

Read the requirements.

Requirement $1.$ Calculate each division's ROI.

First enter the formula, then calculate each division's ROI using the expanded formula.

Data table

$\backslash$table$[[,,$Sales,Operating Income,Total Assets$],[$Residential$,$$$,420,000$$$,58,800,210,000],[$Professional$,$$$,608,000$$$,152,000,380,000]]$

Assume that management has a $26\%$ target rate of return for each division.

Requirements

Calculate each division's ROI.

Calculate each division's sales margin. Interpret your results.

Calculate each division's capital turnover. Interpret your results.

Use the expanded ROI formula to confirm your results from Requirement $1.$ What can you conclude?

Calculate each division's residual income $($RI$).$ Interpret your results.