The following information relates to Department A of Fun Ride Inc.: Direct materials $6 Direct manufacturing labor $5 Variable factory overhead $2 Fixed factory overhead $3 Total $16 Department A has capacity of 20,000 units per year and is selling 15,000 units per year to outside buyers at $20 each. Department B of Fun Ride has offered to purchase 2,000 units from Department A for $16 per unit. What will be the change in operating income for Fun Ride if Department A agrees to the offer