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 65 students enrolled in those two courses. Data concerning the company's cost formulas appear below: Fixed Cost Cost per per Month Course $ 2,950 Cost per Student $ 270 $ 50 Instructor wages Classroom supplies Utilities Campus rent Insurance Administrative expenses $ 1,230 $ 5,000 $ 2,100 $ 3,600 $ 44 $ 5 For example, administrative expenses should be $3,600 per month plus $44 per course plus $5 per student. The company's sales should average $860 per student. The company planned to run four courses with a total of 65 students, however, it actually ran four courses with a total of only 57 students. The actual operating results for September appear below: Revenue Instructor wages Classroom supplies Utilities Campus rent Insurance Administrative expenses Actual $ 53,000 $ 11,080 $ 17,400 $ 1,840 $ 5,000 $ 2, 240 $ 3,527 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