For example, electricity costs should be $1,400 per month plus $0.10 per car washed. The company expects to wash 8,400 cars in August and to collect an average of $6.50 per car washed. The actual operating results for August are as follows: Requilred: Calculate the company's revenue and spending varlances for August. (Indicate the effect of each varlance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (I.e., zero varlance). Input all amounts as positlve values.)