See Clear Company manufactures clear plastic CD cases. It applies variable overhead based on the number of machine hours used. Information regarding See Clear's overhead for the month of December follows: Standard Quantity Standard Rate Variable manufacturing 0.2 machine hours per $0.00 per machine overhead case During December, See Clear had the following actual results Number of units produced and sold Actual variable overhead cost Actual machine hours 350,000 $54,000 60,000 hour Standard Unit Cust $0.10 Required: Compute See Clear'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 "R" for favorable, "U" for unfavorable, and "None" for no effect (l.e., zero varience).) Variable Overhead Rate Variance Variable Overhead Efficiency Variance Vanable Overhead Spending Variance