Parker Plastic, incorporated, manufactures plastic mats to use with rolling office chairs. Its standard cost information for last year follows: Parker Piastic had the following actual results for the past year Required: Calculate Parker Plastic's fixed overhead spending and volume variances and its over- or underapplied fixed overhead Note: Indicate the effect of each variance by selecting " F " for favorable, " U " for unfavorable, and "None" for no effect (i.e., zero variance)