Required information [The following information applies to the questions displayed below.) Raner, Harris & 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: Office Total Company Chicago Minneapolis Sales $ 486,000 100.000 $ 162,000 100.000 $ 324,000 100.000 Variable expenses 243,000 50.000 4B, 600 30.000 194,400 60.000 Contribution margin 243,000 50.000 113,400 70.000 129,600 40.000 Traceable fixed expenses 136,080 29.000 84,240 52.000 51,040 16.005 Office moment margin 106,920 22.00 $ 29,160 18.000 $ 77,760 20.000 Common fixed expenses not traceable to offices 68,040 14.00: Not operating income $ 38,880 8.000 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