The Greensboro Performing Arts Center (GPAC) has a total capacity of 8,800 seats: 2,400 center seats, 2,900 side seats, and 3,500 balcony seats. The budgeted and actual tickets sold for a Broadway musical show are as follows: Percentage Occupied Ticket Budgeted Actual Price Seats Seats $ 80 80% 85% 70 70 75 60 75 65 Center Side Balcony 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