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E9-11 Calculating Variable Manufacturing Overhead Variances [LO 9-5] 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 Standa QuantityRateUnit Cost $0.80 Variable manufacturing 0.6 $0.48 overhead During August, LLL had the following actual results: Units produced and sold Actual variable overhead Actual direct labor hours 24,900 $ 9,480 15,900 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