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 Variable manufacturing 0.6 $0.80 overhead $0.48 During August, LLL had the following actual results: Units produced and sold 25,600 Actual variable overhead $ 9,550 Actual direct labor hours 16,600 Required: Compute LLLS variable overhead rate varianco, variable overhead officiency variance, and over- or underapplied variable overhead. (Do not round Intermediate calculations, indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (.e., zero variance)) Variable Overhead Rate Varianco Variable Overhead Efficiency Variance Variable Overhond Spending Variance