Nottingham Forest Products reports the following information concerning operations for the most recent month: Actual (based on actual sales of 4,800 units) $ 228,700 Master Budget (based on budgeted sales of 4,000 units) $ 188,000 Sales revenue Less Manufacturing costs Direct labor Materials Variable overhead Marketing Administrative 50,302 39,000 31,520 27,200 16,608 13,100 7,805 6,200 7,215 6,500 Total variable costs $ 113,450 $ 92,000 Contribution margin $ 115,250 $ 96,000 Fixed costs Manufacturing Marketing 38,930 14,860 37,400 12,200 Administrative 9,510 10,400 Total fixed costs $ 63,300 $ 60,000 Operating profits $ 51,950 $ 36,000 There are no inventories. Required: Prepare a sales activity variance analysis for Nottingham Forest Products. Note: Do not round intermediate calculations. Indicate the effect of each variance by selecting "F" for favorable, or "U" for unfavorable. If there is no effect, do not select either option. Sales revenue Variable costs: Answer is complete but not entirely correct. NOTTINGHAM FOREST PRODUCTS Sales Activity Variance Flexible Budget (based on actual of 4,800 units) Sales Activity Variance $ 225,600 $ 225,600 F $ Master Budget (based on budgeted 4,000 units) 188,000 Manufacturing costs: Direct labor Materials Variable overhead Marketing 46,800 46,800 U 39,000 32,640 32,640 U 27,200 15,720 15,720 U 13,100 7,440 7,440 U 6,200 Administrative 7,800 7,800 U 6,500 Total variable costs $ Contribution margin $ A A 110,400 $ 110,400 U $ 92,000 115,200 $ 115,200 F $ 96,000 Fixed costs: Manufacturing Marketing 37,400 U 12,200 U Administrative 10,400 U Total fixed costs $ 60,000 U Operating profits $ 55,200 55,200 F 1 37,400 12,200 10,400 $ 60,000 $ 36,000