Zippy Company has a product that it currently sells in the market for $60 per unit. Zippy has developed a new feature that, if added to the existing product, will allow Zippy to receive a price of $75 per unit. The total cost of adding this new feature is $38,000 and Zippy expects to sell 2,400 units in the coming year. What is the net effect on next-year's operating income of adding the feature to the product?