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CoursHeroTranscribedText: Tiago makes three models of camera lens. Its product mix and contribution margin per unit follow: Percentage of Unit Contribution Margin per sales unit Lens A 2296 $44 Lens B 45 36 Lens C 33 49 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 xed costs are $193,000. 3. Determine how many units of each product must be sold to generate a profit of $70,000