A company produces and sells a single product whose variable cost is $6 per unit. Fixed costs have been absorbed over the normal level of activity of 200,000 units and have been calculated as $2 per unit. The current selling price is $10 per unit. How much contribution is made under marginal costing if the company sells 250,000 units? A company produces and sells a single product whose variable cost is $6 per unit. Fixed costs have been absorbed over the normal level of activity of 200,000 units and have been calculated as $2 per unit. The current selling price is $10 per unit. How much contribution is made under marginal costing if the company sells 250,000 units