Last month, Laredo Company sold 450 units for $25 each. During the month, fixed costs were $2,520 and variable costs were $9 per unit. Required: 1. Determine the unit contribution margin and contribution margin ratio. Unit Contribution Margin Contribution Margin Ratio % 2. Calculate the break-even point in units and sales dollars. (Round your answers to the nearest whole number.) Break-Even Units Break-Even Sales Dollars Units 3. Compute Lared o's margin of safety in units and as a percentage of sales. (Round your intermediate calculations to the nearest whole number. Round your final percentage of sales answers to 4 decimal places. (i.e. 0.123456 should be entered as 12.3456.)) Margin of Safety Percentage of Sales Units