A manufacturer is currently selling a product for $$8\mathrm{.}00$ per unit. Its current variable costs are $$3\mathrm{.}50.$ However, because of a new union contract, the product's variable costs will increase next month to $$4\mathrm{.}00.$ The manufacturer is considering lowering the product's price next month by $12\mathrm{.}5\%.$ What is the change in contribution margin that the manufacturer should use when calculating the breakeven sales level for this price change?

$-$$$1\mathrm{.}50$

$$3\mathrm{.}50$

$$1\mathrm{.}50$

$$2\mathrm{.}00$

$-$$$1\mathrm{.}00$