! 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 $ 472,500 100% 236,250 50% 236,250 50% 132,300 28% 103,950 22% 66,150 14% $ 37,800 8% $ 28,350 Chicago $ 157,500 100% 47,250 30% 110,250 70% 81,900 52% 18% Minneapolis $ 315,000 189,000 60% 100% 126,000 40% 50,400 16% $ 75,600 24% Required: 1-a. Compute the companywide break-even point in dollar sales. 1-b. Compute the break-even point for the Chicago office and for the Minneapolis office. 1-c. Is the companywide break-even point greater than, less than, or equal to the sum of the Chicago and Minneapolis break-even points?