Hurren Corporation makes a product with the following standard costs:

Inputs	Standard Quantity or Hours	Standard Price or Rate	Standard Cost Per Unit
Direct materials	5.4 grams	$8.00 per gram	$43.20
Direct labor	0.9 hours	$19.00 per hour	$17.10
Variable overhead	0.9 hours	$8.00 per hour	$7.20

The company reported the following results concerning this product in June.

Originally budgeted output	5,600	units
Actual output	5,500	units
Raw materials used in production	28,480	grams
Actual direct labor-hours	4,700	hours
Purchases of raw materials	32,800	grams
Actual price of raw materials purchased	$8.10	per gram
Actual direct labor rate	$19.90	per hour
Actual variable overhead rate	$7.70	per hour

The company applies variable overhead on the basis of direct labor-hours. The direct materials price variance is computed when the materials are purchased.

The labor efficiency variance for June is: