Hadley Corporation, which has only one product, has provided the following data concerning its most recent month of operations: Selling price Units in beginning inventory Units produced Units sold Units in ending inventory $196 100 1,680 900 880 Variable costs per unit: Direct materials Direct labor Variable manufacturing overhead Variable selling and administrative expense Fixed costs: Fixed manufacturing overhead Fixed selling and administrative expense $ 94 $ 35 $ 6 $ 8 $ 20,160 $20,700 What is the total period cost for the month under variable costing