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 50 students enrolled in those two courses. Data concerning the company's cost formulas appear below: Fixed Cost per Cost per Cost per Month Course Student 3,080 Instructor wages Classroom supplies Utilities Campus rent Insurance Administrative expenses $260 $ 870130 4,200 1,890 3,270 15 $ 4 For example, administrative expenses should be $3,270 per month plus $15 per course plus $4 per student. The company's sales should average $800 per student. The company planned to run three courses with a total of 45 students; however, it actually ran three courses with a total of only 42 students. The actual operating results for September appear below: Revenue Instructor wages Classroom supplies Utilities Campus rent Insurance Administrative expenses Actual $ 32,400 $ 9,080 $ 8,540 $ 1,530 $ 4,200 $ 1,890 $ 3,790 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