Waterway Inc. is the only player in the classy snow shovel market. The variety of shovel designs includes camouflage $($both green and pink, of course$),$ snowman, beach, and northern lights. Waterway purchases basic aluminum snow shovels from a supplier, applies its durable designs, and sells the shovels for $$40$ each. Last year, the company generated $$48,000$ in operating income, based on the following details.

Sales volume in units

Operating expenses

DM cost per unit

DL cost per unit

Variable$-$MOH per unit

Fixed$-$MOH per unit

$9,500$

$$83,000$

$$8\mathrm{.}00$

$$6\mathrm{.}00$

$$8\mathrm{.}00$

$$2\mathrm{.}00$

This year, the company realizes that its operating expenses will increase by $$16,000$ and its direct labor costs will increase by $20\%$ per unit.

What markup percentage on total cost will the company need to use this year to generate $$116,000$ in operating income while increasing sales volume by $40\%?$ If the company's asset base is $$1,639,000,$ what is the ROI earned under this scenario? $($Round answers to $2$ decimal places, e$.$g$.15\mathrm{.}25\%.)$

Markup percentage $\%$

ROI $\%$