Sproull Inc., which produces a single product, has provided the following data for its most recent month of operation: Number of units produced 10,700 Variable costs per unit: Direct materials $ 134 Direct labor $ 72 Variable manufacturing overhead $ 2 Variable selling and administrative expenses $ 16 Fixed costs: Fixed manufacturing overhead $ 684,800 Fixed selling and administrative expenses $ 192,600 The company had no beginning or ending inventories. Required: a. Compute the unit product cost under absorption costing. b. Compute the unit product cost under variable costing