Can someone help me understand this accounting sheet?

[The following information applies to the questions displayed below.] Hudson Co. reports the contribution margin income statement for 2017. HUDSON CO. Contribution Margin Income Statement For Year Ended December 31, 2017 Sales (9,800 units at $280 each) $2, 744, 000 Variable costs (9,800 units at $210 each) 2,058,000 Contribution margin $ 686,000 Fixed costs 504,000 Pretax income $ 182, 000 If the company raises its selling price to $300 per unit. 1. Compute Hudson Co.'s contribution margin per unit. 2. Compute Hudson Co.'s contribution margin ratio. 3. Compute Hudson Co.'s break-even point in units. 4. Compute Hudson Co.'s break-even point in sales dollars. 1. Contribution margin per unit 2. Contribution margin ratio 3. Break-even point units 4. Break-even sales dollars