At Richetti, the standard quantity of labor is 24 hours per refrigeration unit. The standard wage rate is $ 33. In July, the company produced 75 refrigeration units and incurred 2,130 labor hours at a cost of $ 63,900. Calculate the labor rate variance and the labor efficiency variance. Indicate whether the variances are favorable or unfavorable. (Round intermediate calculations to 2 decimal places, e.g. 14.37 and final answers to O decimal places, e.g. 125. Enter all variances as a positive number.) Labor Rate Variance $ Labor Efficiency Variance $