Tiago makes three models of camera lens. Its product mix and contribution margin per unit follow: Percentage of Unit sales Lens A Lens B Lens C Contribution Margin per unit $44 36 49 30 Required 1. Determine the weighted-average contribution margin per unit. (Round your intermediate calculations and final answer to 2 decimal places.) ighted Average CM per unit 2. Determine the number of units of each product that Tiago must sell to break even if fixed costs are $194,000. (Round intermediate calculations and final answers to the nearest whole number.) Units of A Units of B Units of C Units Units Units