4. (10 points) O'Bannion Compnay, which has only one product, has provided the following data concerning its most recent month of operations: Selling price... $124 Units in beginning inventory.. 0 Units produced.. 6,100 Units sold.... 5,600 Units in ending inventory. 500 Variable costs per unit: Direct materials.. $23 Direct labor. $43 Variable manufacturing overhead. $2 Variable selling and administrative..... $11 Fixed costs: Fixed manufacturing overhead. $183,000 Fixed selling and administrative.......... $61,600 a. (5 points) Prepare a contribution format income statement for the month using variable costing. b. (5 points) Prepare an income statement for the month using absorption costing.