Young and Martin, Inc., sells a single product. This year, $20,000$ units were sold resulting in $$130,000$ of sales revenue, $$60,000$ of variable costs, and $$17,500$ of fixed costs.

The contribution margin per unit is:

$$6\mathrm{.}50$

$$3\mathrm{.}00$

$$1\mathrm{.}75$

$$3\mathrm{.}50$