Zoe, 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 p year $($in thousands of dollars$)$:

View the information. ${?}^3$

Read the requirements. ${?}^4$

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

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

Residential

Professional

Interpret your results.

Each division's ROI is $(3)$ however, the $(4)$ has an even higher ROI than the $(5)$

Requirement $2.$ Calculate each division's sales margin. Interpret your results.

First enter the formula, then calculate each division's sales margin.

$\backslash$table$[[,(6),+,(7),=,$Sales margin$],[$Residential$,,+,,=,\%$