A support desk closed 480 tickets last quarter. Every closed ticket was filed into exactly one resolution-time bucket:
| Resolution time | Tickets |
|---|---|
| Under 1 hour | 68 |
| 1 to 4 hours | 154 |
| 4 to 24 hours | 151 |
| Over 24 hours | 107 |
Treating these 480 tickets as the observed record, estimate the empirical probability that a ticket is resolved within 4 hours.
Give your answer as a percentage rounded to 2 decimal places (for example, 12.34). Type the number only — do not include the % sign.