Compute the product cost per unit using variable costing. Determine the cost of ending finished goods inventory using variable costi Determine the cost of goods sold using variable costing. Trio Company reports the following information for its first year of operations. Exercise 19-2 (Algo) Computing unit and inventory costs under variable costing LO P1 Assume instead that Trio Company uses variable costing. 1. Compute the product cost per unit using variable costing. 2. Determine the cost of ending finished goods inventory using variable costing. 3. Determine the cost of goods sold using variable costing