For example, administrative expenses should be $3,700 per month plus $41 per course plus $7 per student. The company’s sales should average $860 per student. The company planned to run four courses with a total of 63 students; however, it actually ran four courses with a total of only 61 students. The actual operating results for September appear below: Actual Revenue $ 51,280 Instructor wages $ 11,160 Classroom supplies $ 17,490 Utilities $ 1,900 Campus rent $ 4,900 Insurance $ 2,440 Administrative expenses $ 3,731 Required: 1. Prepare the company’s planning budget for September. 2. Prepare the company’s flexible budget for September. 3. Calculate the revenue and spending variances for September.