I don't think I got the contribution margin ratio correct.

Sunland Bucket Co., a manufacturer of rain barrels, had the following data for 2019. Sales Sales price Variable costs Fixed costs 2,120 units $50 per unit $33 per unit $16,695 What is the contribution margin ratio? Contribution margin ratio 34 % What is the break-even point in dollars? Break-even point 49102 What is the margin of safety in dollars and as a ratio? Margin of safety $ Margin of safety ratio % If the company wishes to increase its total dollar contribution margin by 30% in 2020, by how much will it need to increase its sales if selling price per unit, variable price per unit and total fixed costs remain constant? Total increase in sales required