Literally like me. I got 61 - 68% internally.
Anyways you have to get into the 70s- 80s for each subject externally to get a higher percentage. If you get 60-65% externally it will go lower probs hitting late 50s. However, if you do get 70-80s externally you get into mid 60s or more. :)
Yeah like the HSC examination mark on your last report. That's how it supposed to work.
According to: https://www.uac.edu.au/media-centre/news/a-quick-guide-to-student-rankings