Exercise 3-5A (Algo) Contribution margin per unit approach for break-even and desired profit LO 3-1 Information concerning a product produced by Thornton Company appears as follows: Sales price per unit Variable cost per unit Total annual fixed manufacturing and operating costs $ 174 $ 86 $536,800 Required Determine the following: a. Contribution margin per unit. b. Number of units that Thornton must sell to break even. c. Sales level in units that Thornton must reach to earn a profit of $299,200. a. Contribution margin per unit b. Break-even in units c. Required sales in units