Lavage Rapide is a Canadian company that owns and operates a large automatic car wash facility near Montreal. The following table provides estimates concerning the company's costs: Fixed Cost per Month Cost per Car Washed Cleaning supplies $ 0.60 Electricity $ 1,300 $ 0.08 Maintenance $ 0.10 Wages and salaries $ 5,000 $ 0.30 Depreciation $ 8,400 Rent $ 2,000 Administrative expenses $ 1,700 $ 0.02 For example, electricity costs should be $1,300 per month plus $0.08 per car washed. The company expects to wash 8,400 cars in August and to collect an average of $6.80 per car washed. The actual operating results for August are as follows: Lavage Rapide Income Statement For the Month Ended August 31 Actual cars washed Revenue Expenses: Cleaning supplies Electricity Maintenance Wages and salaries Depreciation Rent Administrative expenses Total expense Net operating income Required: 8,500 $ 59,220 5,540 1,942 1,080 7,880 8,400 2,200 1,768 28,810 $ 30,410 Calculate the company's revenue and spending variances for August. (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.)