Shaak Corporation uses customers served as its measure of activity. The company bases its budgets on the following information: Revenue should be $3.70 per customer served. Wages and salarles should be $21,300 per month plus $0.80 per customer served. Supplies should be $1.00 per customer served. Insurance should be $5,450 per month. Miscellaneous expenses should be $3,400 per month plus $0.10 per customer served. The company reported the following actual results for October: Required: Prepare a report showing the company's revenue and spending variances for October. Label each varlance as favorable (F) or unfavorable (U). 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