Compute total product cost per unit using absorption costing for the following production levels: (a) 1,500 units, (b) 1,800 units, and (c) 3,000 units. The company sells its product for $180 per unit. Compute gross profit using absorption costing assuming the company (a) produces and sells 1,500 units and (b) produces 1,800 units and sells 1,500 units. The company sells its product for $180 per unit. Compute contribution margin using variable costing assuming the company (a) produces and sells 1,500 units and (b) produces 1,800 units and sells 1,500 units