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27 POL 03.06.30 In March, James Electronics had sales of $2.580.000 (25.800 units), total variable expenses of $1548,000 and total fixed expenses of $840,000 Required: 1. What is the company's CM ratio? 2. Using the CM ratio, calculate the break-even level of sales in dollars Beven of door 3. What is the break even level of sales in units? Bresk even levd of san unt unts 27 2020454) 2. Using the CM ratio, calculate the break even level of sales in dollais Timak uven hef of Sur, in doo 3. What is the break-even level of sales in units? unts 4. Estimate the change in the company's operating income it it increased its total sales by $640,000 Estimated change in operating income