ppOle Mal LaeP C&mpany sells a product for $19. Unit costs are as follows: Direct materials Direct labor Variable factory overhead Variable selling and administrative expense $2.05 1.20 2.15 1.06 Total fixed factory overhead is $55,520 per year, and total fixe selling and administrative expense is $38,530. Required: 1. Calculate the variable cost per unit and the contribution margin per unit 2. Calculate the contribution margin ratio and the variable cost ratio