Tiago makes three models of camera lens. Its product mix and contribution margin per unit follow: Percentage of Unit sales Contribution Margin per unit Lens A 23 % $ 38 Lens B 36 30 Lens C 41 43 Required:

1. Determine the weighted-average contribution margin per unit. (Round your intermediate calculations and final answer to 2 decimal places.)

2. Determine the number of units of each product that Tiago must sell to break even if fixed costs are $181,000. (Round intermediate calculations and final answers to the nearest whole number.)

3. Determine how many units of each product must be sold to generate a profit of $80,000. (Round intermediate calculations and final answers to the nearest whole number.)