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