I need help with req 1a, 1b, 1 c please

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: Office Total Company Chicago Minneapolis Sales $ 540, 000 100% $ 180, 090 100% $ 360, 090 100% Variable expenses 270,000 50% 54,000 30% 216,090 60% Contribution margin 270, 090 50% 126, 000 70% 144, 000 40% Traceable fixed expenses 151, 200 28% 93 , 600 52% 57 , 600 16% Office segment margin 118,800 22% $ 32, 400 18% $ 86,400 24% Common fixed expenses not traceable to offices 75,600 14% Net operating income $ 43, 200 8% Exercise 7-16 Part 1 (Algo) Working with a Segmented Income Statement; Break-Even Analysis [LO7-4, LO7-5] 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? Complete this question by entering your answers in the tabs below. Show less Req 1A Req 1B Req 1C Compute the companywide break-even point in dollar sales. (Round "CM ratio" to 2 decimal places and final answer to the nearest whole number.) Break-even point in dollar sales Pre.v. 2 of 6 Next >