Beyonc is looking at a monthly performance report for her lemonade stand for last month. She has been provided with the following standard cost per batch of lemonade: Standard Costs are based on machine hours. Last month, Beyonc's lemonade stand produced 150 batches of lemonade and incurred the following costs: a. Purchased 100 pounds of materials at a cost of $4.37 per pound. b. Used 87 pounds of materials in production. (Finished goods and work in process inventories can be ignored). c. Worked 167 direct labor-hours at a cost of $16.59 per hour. What is Beyonc's labor efficiency variance for last month? Enter your answer as a positive number (note Favorable or Unfavorable for the next question). Question 10 Refer to your previous answer to Question 9. Is Beyonc's labor efficiency variance for last month favorable or unfavorable? Unfavorable Favorable