Answer:
The percentage of the students that buy tickets are 33.02%
Explanation:
The percentage of students that buy tickets is calculated as:

Where X is the number of students who buy the tickets and Y is the number of students that are enrolled in the school. Replacing X by 604 and Y by 1829, we get:

Percentage=33.02%
Then, the percentage of the students that buy tickets is 33.02%