Problem: Splish brothers's vice president of finance has offered another option. He suggests a different system that combines personal service at key points in the cafeteria line with a less expensive automated self-service system for other items. How much would net income increase if sales increased by 283000 The financial information on this system is given below. Personal Service System: Sales: 2830000 Varible Costs: 1698000 Contribution Margin: 1132000 Fixed costs: 566000 Net Income: 566000