Parker Plastic, Inc, manufactures plastic mats to use with rolling office chairs. Its standard cost information for last year follows: standard Direet materials (plastic) Standard Standard Price Quantity 13 s t . 5 0.70 per sq. ft. 0.25 hr. 12.20 per he. 0.25 Mr. 91.40 perhe. 0.35 Variable manufacturing overhead based on direct labor hours) Fixed facturing overhead (9500,040 - 926,000 units) Parker Plastic had the following actual results for the past year: Sumber of unita produced and sold Number of square feet of plastie weed Cost of plastie purchased and used Number of labor hours worked Direct labor cost Variable overhead cost Fixed overhead cost Required: Calculate Parker Plastic's variable overhead rate and efficiency variances and its 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 (ie, zero variance) Variable Overhead Rate Variance Variable Overhead Eficiency Variance Variable Overhead Spending Variance