E9-8 (Algo) Calculating Direct Materials Variances [LO 9-3] Parker Plastic. Incorporated, manufactures plastic mats to use with rolling office chairs. its standard cost information for last year follows: Harker Plastic hod the following actual results for the past year: Required: Calculate Parker Piastic's direct materials price and quantity variances. Note: 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)