A university is planning to hold an event at a local venue, which will charge a fixed rental fee of $660 for the event plus $17.90 per guest for food. The university has budgeted $905 for administrative and marketing expenses. It plans to hire a band, which will cost another $495. Tickets are expected to sell for $41.30 per guest. Ignore taxes. What is the degree of operating leverage if 253 guests attend?