A company produces 1,000 packs of chicken feed per month. Sales price is $4 per pack. Variable cost is $1.50 per unit, and fixed costs are $1,800 per month. Management is considering adding a vitamin supplement to improve the value of the product. The variable cost will go up from $1.50 to $1.90 per unit, but there will be no change in fixed costs. The company will price the new product at $4.25 to compete with other producers. How will this affect operating income?