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:

OfficeTotal CompanyChicagoMinneapolisSales$937,500100.0%$187,500100%$750,000100%Variable expenses506,25054.0%56,25030%450,00060%Contribution margin431,25046.0%131,25070%300,00040%Traceable fixed expenses210,00022.4%97,50052%112,50015%Office segment margin221,25023.6%$33,75018%$187,50025%Common fixed expenses not traceable to offices150,00016.0%Net operating income$71,2507.6%

Required:

1-a. Compute the companywide break-even point indollar 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?