Surf Company can sell all of the two surfboard models it produces, but it has only 400 direct labor hours available. The Glide model requires 2 direct labor hours per unit. The Ultra model requires 4 direct labor hours per unit. Contribution margin per unit is $200 for Glide and $300 for Ultra. Direct labor hours available Glide model - Direct labor hours per unit Ultra model - Direct labor hours per unit 400 2 4 Glide model - Contribution margin per unit $200 Ultra model - Contribution margin per unit $300 1 2 3 Required: 5 (a) Compute the contribution margin per direct labor hour for each product. 5(Use cells A2 to E10 from the given information to complete this question.) 7 B Glide Ultra Contribution margin per direct labor hour D (b) Determine the best sales mix and the resulting contribution margin. 2 B (Use cells A2 to E10 from the given information to complete this question.) 5 5 Number of units at best sales mix Contribution margin Glide Ultra