ABC Builders Inc. produces three products: A, B, and C. The following information is presented for the three products: B $40 $34 $20 Selling price per unit Variable cost per unit $25 $20 $6 Total fixed costs are $321,000. Required: Calculate the contribution margin for each product a. Calculate the break-even point in units of the three products A, B, and C combination if the sales mix is 1 unit of A 2 units of B, and 2 units of C. fl., 20% of sales are from A and 40% of sales are from B and the other 40% are from Cl