My event is limited to a certain number of attendees. How can I ensure an accurate participant count?

Configure a price set for the fees instead of using the Regular Fees section of the Fees configuration for your event page.

Existing price sets are found under:
Events>Manage Price Sets. To create a new Price Set, you can click on Events>New Price Set. Give the price set a name and designate that it will be used for Events and choose the default financial type "Event Fee".

Once the price set has been saved, you will then need to add the price fields displaying the different options for your event.

Example: below you can see how to configure a field that will allow for participants to add the number of guests for the silent auction dinner (cost - $35.00/person) and has the maximum set for 30 attendees.