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 (.e., zero variance). Input all amounts as positive values.) Gourmand Cooking School Flexible Budget Performance Report For the Month Ended September 30 Actual Results Revenue and Spending Variances Flexible Budget Activity Variances Planning Budget Courses Students 57 57 Revenue $ 53,000 11,160 Expenses: Instructor wages Classroom supplies Utilities Campus rent Insurance Administrative expenses Total expense Net operating income 18,700 1,920 5,000 2,340 3,419 42,539 10,461 1 $