Bramble Corp. sells its product for $90 per unit. During 2016, it produced 60000 units and sold 50000 units (there was no beginning inventory) Costs per unit are: direct materials $23, direct labor $12, and variable overhead $2. Fixed costs are: $720000 manufacturing overhead, and $90000 selling and administrative expenses. The per unit manufacturing cost under variable costing is $35. $37. $49 $50