Ritchie Manufacturing Company makes a product that it sells for $160 per unit. The company incurs variable manufacturing costs of $73 per unit. Variable selling expenses are $15 per unit, annual fixed manufacturing costs are $456,000, and fixed selling and administrative costs are $278,400 per year. Required Determine the break-even point in units and dollars using each of the following approaches: Use the equation method. Use the contribution margin per unit approach. Use the contribution margin ratio approach. Prepare a contribution margin income statement for the break-even sales volume.