AirQual Test Corporation provides on-site air quality testing services. The company has provided the following cost formulas and actual results for the month of February: The company uses the number of jobs as its measure of activity. For example, moblie lab operating expenses should be $4,600 plas $31 per job, and the actual mobile lab operating expenses for February were $8.160. The company expected to work 120 jobs in February, but actually worked 128 jobs. Required: Prepare a flexible budget performance report showing AirQual Test Corporotion s revenue and spending valankes and activity variances for Februory. (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" foe no ffect (l.e, zero variance). Input all bmounts as positive values.)