Lamp Light Limited (LLL) manufactures lampshades. It applies variable overhead on the basis of direct labor hours. Information from LLLs standard cost card follows: Standard Quantity Standard Rate Standard Unit Cost Variable manufacturing overhead 0.6 $0.80 $0.48 During August, LLL had the following actual results: Units produced and sold 25,000 Actual variable overhead $ 9,490 Actual direct labor hours 16,000 Required: Compute LLLs variable overhead rate variance, variable overhead efficiency variance, and over- or underapplied variable overhead. (Do not round intermediate calculations. Indicate the effect of each variance by selecting "F" for favorable/Overapplied and "U" for unfavorable/underapplied.)