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 reportsthe 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: Fixed Cost per Cost per Cost per Month Instructor wages Classroom supplies Utilities Course $ 2,920 Student $ 300 $ 1,220 $ 55 Campus rent $ 5,100 Insurance $ 2,200 Administrative expenses $ 3,600 $ 45 $ 7 For example, administrative expenses should be $3,600 per month plus $45 per course plus $7 per student. The company's sales should average $900 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 62 students. The actual operating results for September were as follows: Revenue Actual $ 54,700 Instructor wages $ 10,960 Classroom supplies $ 19,050 Utilities Campus rent $ 1,850 $ 5,100 $ 2,340 $ 3,654 Insurance Administrative expenses Required: Prepare a flexible budget performance report that shows both revenue and spending variances and activity variances for September. (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.)