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 63 students enrolled in those two courses. Data concerning the company's cost formulas appear below: Course Fixed Cost per Cost per Cost per Month Student Instructor wages $2,960 Classroom supplies $270 Utilities $1,220 $ 80 Campus rent $5,100 Insurance $2,200 Administrative expenses $3,900 $ 41 $ 7 For example, administrative expenses should be $3,900 per month plus $41 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 63 students; however, it actually ran four courses with a total of only 57 students. The actual operating results for September were as follows: Revenue, Instructor wages. Classroom supplies Utilities. Campus rent Insurance. Administrative expenses Actual $53,800 $11,120 $16,860 $ 1,950 $ 5,100 $ 2,340 $ 3,931 Required: Prepare a flexible budget performance report that shows both revenue and spending variances and activity variances for September. findicate the effect of each variance hy selecting "E" for favorable "U" for unfavorable and "None" for no effect lie vern