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 companys costs:

	Fixed Cost per Month	Cost per Car Washed
Cleaning supplies		$ 0.60
Electricity	$ 1,100	$ 0.08
Maintenance		$ 0.25
Wages and salaries	$ 4,700	$ 0.20
Depreciation	$ 8,400
Rent	$ 2,100
Administrative expenses	$ 1,400	$ 0.04

For example, electricity costs should be $1,100 per month plus $0.08 per car washed. The company expects to wash 8,200 cars in August and to collect an average of $6.80 per car washed. The company actually washed 8,300 cars in August.

Required:

Calculate 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.)