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 64 students enrolled in those two courses. Data concerning the company's cost formulas appear below: Instructor wages Classroom supplies Utilities Campus rent Insurance Administrative expenses Fixed Cost per Month Cost per Course $ 2,910 Cost per Student $ 260 $ 1,230 $ 55 $ 4,500 $ 2,200 $ 3,600 $ 44 $ 6 For example, administrative expenses should be $3,600 per month plus $44 per course plus $6 per student. The company's sales should average $860 per student. The company planned to run four courses with a total of 64 students; however, it actually ran four courses with a total of only 54 students. The actual operating results for September appear below: Revenue Instructor wages Classroom supplies Utilities Campus rent Insurance Administrative expenses Required: Actual $ 52,140 $ 10,920 $ 16,490 $ 1,860 $ 4,500 $ 2,340 $ 3,586 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