Contribution Margin

United Merchants Company sells $19,000$ units at $$16$ per unit. Variable costs are $$10\mathrm{.}72$ per unit, and fixed costs are $$59,200.$

Determine $($a$)$ the contribution margin ratio, $($b$)$ the unit contribution margin, and $($c$)$ operating income.

a$.$ Contribution margin ratio $($Enter as a whole number.$)$

X $\%$

b$.$ Unit contribution margin $($Round to the nearest cent.$)$

X per unit

c$.$ Operating income