Required information [The following information applies to the questions displayed below.) Raner, Harris and Chan is a consulting firm that specializes in information systems for medical and dental clinics. The firm has two offices-one in Chicago and one in Minneapolis. The firm classifies the direct costs of consulting jobs as variable costs. A contribution format segmented income statement for the company's most recent year is given: Sales Variable expenses Contribution margin Traceable fixed expenses Office segment margin Common fixed expenses not traceable to offices Net operating income Office Total Company Chicago $450,000 100% $ 150,000 100% Minneapolis $ 300,000 100% 225,000 sex 45,000 30% 180,000 60% 225,000 50% 105,000 70% 120,000 40% 126,000 28% 78,000 52% 48,000 16% 99,000 22% $ 27,000 18% $ 72,000 24% 63,000 14% $ 36,000 8%