The Gourmand Cooking School runs short cooking courses at its small campus. Management has identified two cost drivers it uses in its budgeting and performance reports the number of courses and the total number of students. For example, the school might run two courses in a month and have a total of 62 students enrolled in those two courses. Data concerning the company's cost formulas appear below: Fixed Cost Cost per Cost per Course per Month Student Instructor wages Classroom supplies $ 2,930 $ 280 Utilities $ 1,230 $ 75 Campus rent $ 5,200 Insurance $ 2,200 Administrative expenses $ 3,700 $ 44 $5 For example, administrative expenses should be $3,700 per month plus $44 per course plus $5 per student. The company's sales should average $900 per student. The company planned to run four courses with a total of 62 students; however, it actually ran four courses with a total of only 58 students. The actual operating results for September appear below: ces Revenue Actual $ 52,900 Instructor wages Classroom supplies $ 11,000 $ 17,210 Utilities $ 1,940 Campus rent $ 5,200 Insurance $ 2,340 Administrative expenses $ 3,612 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.