$($P$-29)$ Data concerning Dorazio Corporation's single product appear below:

Fixed expenses are $$87,000$ per month. The company is currently selling $1,000$ units per month. Management is considering using

a new component that would increase the unit variable cost by $$28.$ Since the new component would increase the features of the

company's product, the marketing manager predicts that monthly sales would increase by $400$ units. What should be the overall

effect on the company's monthly net operating income of this change?