The Gourmand Cooking School runs short cooking courses at its small campus. Management has identified two cost drivers it use its budgeting and performance reports-the number of courses and the total number of students. For example, the school might r two courses in a month and have a total of 63 students enrolled in those two courses. Data concerning the company's cost formul appear below: For example, administrative expenses should be $3,600 per month plus $41 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 63 students; however, it actually ran four courses with a total of only 59 students. The actual operating results for September were as follows: Required: Prepare a flexible budget performance report that shows both revenue and spending variances and activity variances for September. Note: Indicate the effect of each variance by selecting "F" for favorable, " U " for unfavorable, and "None" for no effect (i.e., zero variance). Input all amounts as positive values