please help I keep getting this wrong

Lakeside inc. produces a product that currently sells for $36 per unit. Current production costs per unit include direct materials, $10; direct labor, \$12; variable overhead, $5; and fixed overhead, \$5. Product engineering has determined that certain production changes could refine the product quality and functionality. These new production changes would increase material and labor costs by 20% per unit. Lakeside has received an offer from a nonprofit organization to buy 8,000 units at $28 per unit Lakeside currently has unused. production capacity. Required: a. Calculate the effect on Lakeside's operating income of accepting the order from the nonprofit organization. b. Should Lakeside accept this special sales order? Yes No