please just answer $($a$2)($a$2)$

Compute each of the following under the variable$-$cost approach: $($Round percentage answer to $2$ decimal places, e$.$g$.52\mathrm{.}75\%$

and other answer to $0$ decimal places, e$.$g$.52.)$

Markup percentage needed to provide desired ROI

$\%$

Target selling price of the patio door