Tiago makes three models of camera lens. Its product mix and contribution margin per unit follow: Percentage of Unit sales 46% Contribution Margin per unit $44 36 Lens A Lens B Lens C 27 27 Suppose the product mix has shifted to 51/25/24. Required: 1. Determine the new weighted average contribution margin per unit. (Round your intermediate calculation to 2 decimal places. Round your answer to 2 decimal places.) Weighted Average CM per unit 2. Determine the number of units of each product that Tiago must sell to break even if fixed costs are $189,000. (Round intermediate calculations to nearest whole number. Round your answers up to the next whole number.) Units of A Units of B Units of C Units Units Units 3. Determine how many units of each product must be sold to generate a profit of $72,000. (Round intermediate calculations to nearest whole number. Round your answers up to the next whole number.) Units of A Units of B Units of C Units Units Units