The following labor standards have been established for a particular product:

Standard labor-hours per unit of output: 8.6 hours

Standard labor rate: $15.50 per hour

The following data pertain to operations concerning the product for the last month:

Actual hours worked:8,500 hours

Actual total labor cost: $129,200

Actual output: 840 Units

What is the labor rate variance for the month? Was it favorable or unfavorable?