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: For example, administrative expenses should be $3,900 per month plus $44 per course plus $5 per student. The company's sales should average $870 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 59 students. The actual operating results for September appear below: 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. eptember