Vivacious Violins Co. manufactures one type of hand-crafted violin. The company employs two types of employees, expert craftsmen and apprentice craftsmen. Vivacious Violins Co. uses a standard costing system to track variances between expected costs and actual costs. At the beginning of each month, the company creates a static budget to forecast the cost of the direct labor that will be used during the month. On February 1, 2021, the company's team of cost accountants created the following static budget for direct labor costs during the month of February 2021:

			Budgeted number of violins	Standard labor hours per violin	Standard cost per labor hour	Standard cost per violin	Total cost
Expert craftsmen			50	20	$ 100.00	$ 2,000	$ 100,000
Apprentice craftsmen			50	40	$ 25.00	$ 1,000	$ 50,000
Total cost						$ 3,000	$ 150,000
The company's actual direct labor costs during the month of February 2021 are summarized below:
			Actual number of violins	Actual labor hours per violin	Actual cost per labor hour	Actual cost per violin	Total cost
Expert craftsmen			60	18	$ 105.00	$ 1,890	$ 113,400
Apprentice craftsmen			60	38	$ 28.00	$ 1,064	$ 63,840
Total cost						$ 2,954	$ 177,240

Find the labor rate variance, labor mix variance, and labor yield variance.