Fixed CostCost per Month Car Washed per Cleaning supplies Electricity Maintenance Wages and salaries Depreciation Rent Administrative expenses $ 0.40 0.09 0.30 $0.40 $1.100 $4,100 58,400 $1,800 $1,500 0.01 For example, electricity costs are $1.100 per month plus $0.09 per car washed. The company expected to wash 8,400 cars in August and to collect an average or $6.30 per car washed. The company actually washed 8,500 cars. The actual operating results for August appear below. Lavage Rapide Income Statement For the Month Ended August 31 Actual cars washed Revenue Expenses: 8,500 S 55,020 Cleaning supplies Electricity Maintenance Wages and salaries 3,860 1,826 2,760 7.820 8,400 2,000 1,484 Rent Administrative expenses Total expense Net operating income $ 26,870 Required Compute the company's activity 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.)