I put together some supplemental practice problems you can use to learn the math required to calculate Contribution Margin, Contribution Rate, and Breakeven Point. Let me know if you have any questions about these practice problems, Contribution margin per unit = Price per unit - Variable costs per unit, Contribution margin rate = Contribution margin per unit/Price per unit, Breakeven point in units = Fixed costs / Contribution margin per unit, Breakeven point in Sales $ = Fixed costs / Contribution margin rate, are these correct or incorrect? give your feedback