Thornton planned to produce and sell 2,100 units. Actual production and sales amounted to 2,200 units. Required a. Prepare the pro forma income statement in contribution format that would appear in a master budget. b. Prepare the pro forma income statement in contribution format that would appear in a flexible budget. Complete this question by entering your answers in the tabs below. Prepare the pro forma income statement in contribution format that would appear in a master budget