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 QuantityRateUnit Cost Variable manufacturing 0.6 S0.80 $0.48 overhead During August, LLL had the following actual results: produced and sold Units Actual variable overhead Actual direct labor hours 25,300 $ 9,520 16,300 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 FavorablelOverapplied and "Uw for Unfavorable/Underapplied.) Variable Overhead Rate Variance Variable Overhead Efficiency Variance Variable Overhead Spending Variance