Davison Co. prepared the following contribution format income statement based on a salk-s wolume of 10,000 units sthe relevant range of production is 5,000 units to 15,000 units): Bequired: If the vaciable cost per unit increased by $1.50, spending on advertising increased ty $12000, and anit sabes increased by 2500 units. What woudd be the net operating incomp? (Do not round intermediate calculotions.)