my explanation from another thread (this is to the best of my understanding take it with a grain of salt):
1. You get your internal ranks
2. Say the highest internal mark was 60 and the lowest was 20, and the highest in the HSC was 80 and the lowest was 60 - the highest rank internal will get 80 as their internal mark, and the lowest rank internal will get 60 as their internal mark (externals are not affected)
3. If you're in between, then you get moved accordingly! So if you say ranked 2nd with a 54 internally, that would probably get changed to approximately 77. Note that though your actual internal mark doesn't do anything, it still determines how well you moderate, so it's not purely rank that matters.
4. Then they average this score and your external mark!
which means that if the gap internally is small and the hsc mark externally is big then yes, you could get the highest overall mark (e.g. someone gets 92 and 94 and you get 90 internal and 98 external)
if the gap is higher than 1% it definitely cant happen tho right? like 3-4%
