The company uses the number of jobs as its measure of activity. For example, mobile lab operating expenses should be $4,700 plus $31 per job, and the actual mobile lab operating expenses for February were $8,570. The company expected to work 130 jobs in February, but actually worked 138 jobs. Required: Prepare a flexible budget performance report showing AirQual Test Corporation's revenue and spending variances and activity variances for February. Note: 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