Parker Plastic, Inc., manufactures plastic mats to use with rolling office chairs. Its standard cost information for last year follows Standard Quantity Standard Price (Rate) 13 sq ft 1.55 per sq. ft 0.3 hr Standar Unit Cost 3.63 0.36 0.52 Direct materials (plastic) Direct labor $20.15 anufacturing overhead (based on 03hr $ 12.10 per hr 120 per h direct labor hours) Fixed manufacturing overhead 5480,480+ 924,000 units) 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 1,180,000 12,100,000 $ 18,150,000 322,000 3,799,600 $ 1,200,000 379,000 Required Calculate Parker Plastic's variable overhead rate and efficiency variances and its over- or underapplied variable overhead. (Do not round intermediate calculations. Indicate the effect of each variance by selecting "F" for FavorablelOverapplied and "U" for Unfavorable/Underapplied.) Variable Overhead Rate Variance Variable Overhead Efficiency Variance Variable Overhead Spending Variance