6 Lamp Light Limited (LLL) manufactures lampshades. It applies variable overhead on the basis of direct labor hours. Information from Let's standard cost card follows: points Standard Standard Standard Quantity Rate Unit Cout 0.6 $0.80 $0.48 Variable manufacturing overhead Stipped During August, LLL had the following actual results: Book Unite produced and sold 26,200 Actual variable overhead $ 9,580 Actual direct labor hours 16.900 HI rences 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, "U" for unfavorable, and "None" for no effect (le, zero variance).) Variable Overhead Rule Variance Variable Overhead ciency Variance Variable Overhead Spending Varance