In the month of March, Cullumber Salon serviced $570$ clients at an average price of $$170.$ During the month, fixed costs were $$29,580$ and variable costs were $60\%$ of sales.

$($a$)$

Determine the total contribution margin in dollars, the unit contribution margin, and the contribution margin ratio.

Contribution margin in dollars $

Contribution margin per unit $

Contribution margin ratio

$\%$