Deckers Outdооr Cоrporаtion mаnufаctures slippers and sells them at $18 per pair. Variable manufacturing cost is $9 per pair, and allocated fixed manufacturing cost is $3 per pair. Deckers has enough idle capacity available to accept a one-time-only special order of 6,000 pairs of slippers at $12 per pair. Deckers will not incur any marketing costs as a result of the special order. What would be the effect on operating income if the special order could be accepted without affecting normal sales?