can someone help with this

Fixed expenses are $1,034,000 per month. The company is currently selling 9,500 units per month Required: The marketing manager would like to introduce sales commissions as an incentive for the sales staff. The marketing manager has proposed a commission of $15 per unit in exchange, the sales staff would accept an overall decrease in their salaties of $12. ooo pe month. The marketing manager predicts that introducing this sales incentive would increase monthly sales by 720 units. What shouic be the overall effect on the company's monthly net operating income of this change