Parker Plastic, Inc., manufactures plastic mats to use with rolling offlce chairs. Its standard cost information for last year follows: Parker Plastic had the following actual results for the past year: Required: Calculate Parker Plastic's direct materials price and quantity variances. (Do not round intermediate calculations. Indicate the effect of each variance by selecting " F " for favorable, " U " for unfavorable, and "None" for no effect (i.e., zero variance).)