12 sq ft. S 1.45 per sq ft 03 hr $17.40 S 11.90 per ht. 2.30 per hr Direct labor 3.57 0.69 0.50 (based on03 h direct labor hours 922000 units) of units produced and sold 1,160,000 12,000,000 S 16,800,000 320,000 $ 3,744.000 $ 1,100,000 S 377,000 cost cost Re Calculate Parker Plastic's variable overhead rate and efficiency variances and its over- or underapplied variable overhead (Do not round ettect of each variance by selecting "F" tor Favorable/Overapplied and "U" for Unfavorable/Underapplied.) Overhead