Complex sentence: Attendance for the three-day event ranges from 9,000 to 10,000, and net profits for over the last three years have ranged from $18,000 to $35,000.
Split into simpler sentences: Attendance for the three-day event ranges from 9,000 to 10,000. Net profits for over the last three years have ranged from $18,000 to $35,000.