Tiago makes three models of camera lens. Its product mix and contribution margin per unit follow: Percentage of Unit Contribution Margin per Lens A Lens B Lens C sales 21% 37 42 unit $49 41 54 Required: 1. Determine the weighted-average contribution margin per unit. 2. Determine the number of units of each product that Tiago must sell to break even if fixed costs are $179.000. 3. Determine how many units of each product must be sold to generate a profit of $66.000. Required 1 Required 2 Required 3 Determine the weighted-average contribution margin per unit. (Round your intermediate calculations and final answer to 2 decimal places.) Weighted Average CM per unit Required 1 Required 2 Required 3 Determine the number of units of each product that Tiago must sell to break even if fixed costs are $179,000. (Round your intermediate calculations to nearest whole number. Round your answers up to the next whole number. Round weighted- average contribution margin per unit to 2 decimal places.) Units of A Units of B Units Units Units Units of C Required 1 Required 2 Required 3 Determine how many units of each product must be sold to generate a profit of $66,000. (Round your intermediate calculations to nearest whole number. Round your answers up to the next whole number. Round weighted-average contribution margin per unit to 2 decimal places.) Units of A Units of B Units Units Units of C Units