Puvo, Incorporated, manufactures a single product in which variable manufacturing overhead is assigned on the basis of standard direct labor-hours. The company uses a standard cost system and has established the following standards for one unit of product:

	Standard Quantity		Standard Price or Rate		Standard Cost
Direct materials	5.8	pounds	$ 0.60	per pound	$ 3.48
Direct labor	0.5	hours	$ 33.50	per hour	$ 16.75
Variable manufacturing overhead	0.5	hours	$ 8.50	per hour	$ 4.25

During March, the following activity was recorded by the company:

The company produced 2,400 units during the month.

A total of 19,400 pounds of material were purchased at a cost of $13,580.

There was no beginning inventory of materials on hand to start the month; at the end of the month, 3,620 pounds of material remained in the warehouse.

During March, 1,090 direct labor-hours were worked at a rate of $30.50 per hour.

Variable manufacturing overhead costs during March totaled $14,061.

The direct materials purchases variance is computed when the materials are purchased.

The variable overhead efficiency variance for March is:

$1,060 F

$1,060 U

$935 F

$935 U