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

Standard hours per unit 1.7 hours

Standard labor rate $11.50 per hour. By the end of the period 37,300 units of product had been produced. To produce this output 65,000 hours had been worked at an actual cost of $780,000. Required: a. What is the labor rate variance for the month? b. What is the labor efficiency variance for the month?