Chilton, Incorporated, sold $11,600$ units last year for $$20$ each. Variable costs per unit were $$2\mathrm{.}00$ for direct materials, $$3\mathrm{.}00$ for direct labor, and $$4\mathrm{.}30$ for variable overhead. Fixed costs were $$60,600$ in manufacturing overhead and $$41,400$ in nonmanufacturing costs.

Required:

A$-$ What is the total contribution margin?

Note: Round your intermediate calculations to $2$ decimal places.

B$-$ What is the unit contribution margin?

Note: Round your answer to $2$ decimal places

C$-$ What is the contribution margin ratio?

Note: Round your intermediate calculations and final answer to $2$ decimal places.

D$-$ If sales increase by $2,100$ units, by how much will profits increase?

Note: Round your intermediate calculation to $2$ decimal places and final answer to the nearest dollar amount.