A university is planning to hold an event at a local venue, which will charge a fixed rental fee of $555 for the event plus $14.40 per guest for food. The university has budgeted $800 for administrative and marketing expenses. It plans to hire a band, which will cost another $390. Tickets are expected to sell for $37.80 per guest. Ignore taxes. What is the cash break-even point as measured in the number of tickets sold?