Varcoe Corporation bases its budgets on the activity measure customers served. During September, the company planned to serve 38,500 customers, but actually served 33,500 customers. Revenue is $3.97 per customer served. Wages and salaries are $35,800 per month plus $1.37 per customer served. Supplies are $0.67 per customer served. Insurance is $10,000 per month. Miscellaneous expenses are $8,100 per month plus $0.37 per customer served. Required: Prepare a report showing the company's activity variances for September. Indicate in each case whether the variance is favorable (F) or unfavorable (U). (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 and enter any losses with a minus sign.) Varcoe Corporation Activity Variances For the Month Ended September 30 Flexible Planning Budget Budget 33,500 38,500 Activity Variances Customers served Revenue Expenses: Wages and salaries Supplies Insurance Miscellaneous expense Total expense Net operating income (loss)