I don't know what I'm doing wrong, but my answers don't seem to be working. Please help explain

Lavage Rapide is a Canadlan company that owns and operates a large automatic car wash facility near Montreal. The following table provides data concerning the company's costs: For example, electricity costs are $1,200 per month plus $0.05 per car washed. The company expects to wash 8,400 cars in August and to collect an average of $6.10 per car washed. The actual operating results for August are as follows: Required: Calculate the company's revenue and spending varlances for August. (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (I.e., zero varlance). Input all amounts as posltive values.)