E9-9 (Algo) Calculating Direct Labor Variances [LO 9-4] Parker Plastic, Incorporated, manufactures plastic mats to use with rolling oflice 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 labor rate and efficiency 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., rero variance)