Parker Plastic, Incorporated, manufactures plastic mats to use with rolling office chairs. Its standard cost information for last year follows:

	Standard Quantity		Standard Price (Rate)		Standard Unit Cost
Direct materials (plastic)	12	square foot	$ 0.83	per square foot	$ 9.96
Direct labor	0.3	hour	$ 10.50	per hour	3.15
Variable manufacturing overhead (based on direct labor hours)	0.3	hour	$ 2.20	per hour	0.66
Fixed manufacturing overhead ($345,800 910,000 units)					0.38

Parker Plastic had the following actual results for the past year:

Number of units produced and sold	1,040,000
Number of square feet of plastic used	11,400,000
Cost of plastic purchased and used	$ 9,120,000
Number of labor hours worked	308,000
Direct labor cost	$ 3,449,600
Variable overhead cost	$ 689,000
Fixed overhead cost	$ 365,000

Required:

Calculate Parker Plastics variable overhead rate and efficiency variances and its over- or underapplied variable overhead.

Note: Do not round intermediate calculations. Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance).