Cobb Corporation produces three products, A, B and C. The normal volume is 900 units of A, 120 units of B and 180 units of C. The price per unit is $5, $7, $10, for products A, B, and C, respectively. The variable cost per unit is $2, $3, $4, for products A, B, and C. respectively. The total fixed costs are $5,800.
What is the weighted average contribution margin per unit?