TipTop Flight School offers flying lessons at a small municipal airport. The school's owner and manager has been attempting to evaluate performance and control costs using a variance report that compares the planning budget to actual results. A recent variance report appears below TipTop Flight School Variance Report For the Month Ended July 31 Actual Results Lessons Revenue Expenses: Instructor wages Aircraft depreciation Fuel Maintenance Ground facility expenses Administration Total expense Net operating income Planning Budget Variances 185 180 $ 42,360 $ 41,400 $ 960 F 10,960 10,800 160 U 7,400 7,200 200 U 3,620 3,060 560 U 2,690 2,530 160 U 2,130 2,170 40 F 3,720 3,840 120 F 30,520 29,600 920 U $ 11,840 $ 11,800 $40 F