Lamp Light Limited (LLL) manufactures lampshades. It applies variable overhead on the basis of direct labor hours. Information from LLL's standard cost card follows: Standard Standard Standard Quantity Rate Unit Cost ariable manufacturing 0.6 S080 S048 overhead During August, LLL had the following actual results Units produced and sold $ 9,510 16,200 Actual direct labor hours Required Compute LLL's 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.) Variable Overhead Rate Variance Variable Overhead Efficiency Variance Variable Overhead Spending Variance