I am Behind on Laundry (BH) produces non-toxic laundry detergent. They have a contribution margin ratio of 52%. Due to increasing competition within the non-toxic laundry detergent market, BH is interested in investing in an aggressive marketing campaign in order to increase their market share. The marketing campaign is expected to generate an additional $800,000 in sales, and will cost the company $300,000. What will be the change in operating income if they invest in the marketing campaign? If it will result in an operating income increase, enter the number as a positive number. If it will result in an operating decrease, enter the number as a negative number