Cleaning supplies $ 0.60 Electricity $ 1,200 $ 0.05 Maintenance $ 0.20 Wages and salaries $ 5,000 $ 0.30 Depreciation $ 8,400 Rent $ 1,800 Administrative expenses $ 1,400 $ 0.05 For example, electricity costs should be $1,200 per month plus $0.05 per car washed. The company expects to wash 8,100 cars in August and to collect an average of $6.70 per car washed. The company actually washed 8,200 cars in August. Required: Calculate the company's activity variances for August