The Greensboro Performing Arts Center (GPAC) has a total capacity of 7,700 seats: 2,000 center seats, 2,500 side seats, and 3,200 balcony seats. The budgeted and actual tickets sold for a Broadway musical show are as follows:

	Ticket Price	Percentage Occupied
		Budgeted Seats	Actual Seats
Center	$ 75	80%	85%
Side	65	70	75
Balcony	55	75	65

The actual ticket prices were the same as those budgeted. Once a show has been booked, the total cost does not vary with the total attendance.

Required:

Compute the following for the show:

1. The budgeted and actual sales mix percentages for different types of seats.

2. The budgeted average contribution margin per seat. Assume the ticket price is also the contribution margin.

3-a. The total sales mix variance.

3-b. The total sales quantity variance.

4. The total sales volume variance.