Parker Plastic, Inc., manufactures plastic mats to use with rolling office chairs. Its standard cost information for last year follows: Standard Quantity Standard Direct labor Direct materials (plastic) Variable manufacturing overhead 15 sq ft. 0.25 hr. Standard Price (Rate) Unit Cost $ 0.90 per sq. ft. $13.50 $12.60 per hr. 3.15 0.25 hr. $ 1.80 per hr. 0.45 (based on direct labor hours) Fixed manufacturing overhead ($539,400 930,000 units) 0.58 Parker Plastic had the following actual results for the past year: Number of units produced and sold Number of square feet of plastic used Cost of plastic purchased and used Number of labor hours worked Direct labor cost Variable overhead cost Fixed overhead cost 1,240,000 12,400,000 $ 9,920,000 328,000 $ 3,968,800 $ 1,350,000 $ 385,000 Required: Calculate Parker Plastic's direct labor rate and efficiency 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).) Direct Labor Rate Variance Direct Labor Efficiency Variance F