Gabuat Corporation, which has only one product, has provided the following data concerning its most recent month of operations: Selling price $ 138 Units in beginning inventory 0 Units produced 2,600 Units sold 2,310 Units in ending inventory 290 Variable costs per unit: Direct materials $ 49 Direct labor $ 27 Variable manufacturing overhead $ 6 Variable selling and administrative expense $ 6 Fixed costs: Fixed manufacturing overhead $ 36,400 Fixed selling and administrative expense $ 13,860 The total gross margin for the month under the absorption costing approach is: