Johnson Company manufactures a variety of shoes and has received a special one$-$time$-$only order directly from a wholesaler. Johnson has sufficient idle capacity to accept the special order to manufacture $15,000$ pairs of sneakers at a price of $$7\mathrm{.}50$ per pair. Johnson$$s normal selling price is $$11\mathrm{.}50$ per pair of sneakers. Variable manufacturing costs are $$5\mathrm{.}00$ per pair and fixed manufacturing costs are $$3\mathrm{.}00$ per pair. Johnson$$s variable selling expense for its normal line of sneakers is $$1\mathrm{.}00$ per pair. What would be the effect on Johnson$$s operating income if the company accepted the special order?

Decrease by $$60,000$

Increase by $$22,500$

Increase by $$37,500$

Increase by $$52,500$