Velter Corporation, which has only one product, has provided the following data concerning its most recent month of operations The company produces the same number of uiits every month, although the sales in units vary from month to month. Thejcomipanys variable costs per unit and total fixed coste have beeniconstant from month to month Required: a. Prepare a contribution format income statement for the month using variable costing. b. Prepare an income statement for the month using absorption costing Prepare a contribution format income statement for the month using variable costing