Harry Company sells $28,000$ units at $$44$ per unit. Variable costs are $$36\mathrm{.}08$ per unit, and fixed costs are $$122,000.$

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

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

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