Tiago makes three models of camera lens. Its product mix and contribution margin per unit follow: Lens A Lens B Lens C Percentage of Unit sales 23% 37 40 Contribution Margin per unit $46 38 51 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 $193,000. 3. Determine how many units of each product must be sold to generate a profit of $81,000. Determine the weighted average contribution margin per unit. decimal places.) Weighted Average CM per unit Determine the number of units of each product that Tiago must sell to break even if fixed costs are $193,000. intermediate calculations to nearest whole number. Round your answers up to the next whole number. Round v average contribution margin per unit to 2 decimal places.) Units of A Units Units of B Units Units of C Units Determine how many units of each product must be sold to generate a profit of $81,000. calculations to nearest whole number. Round your answers up to the next whole number. contribution margin per unit to 2 decimal places.) Units of A Units Units of B Units Units of C Units