Its a great score but ultimately it means nothing in terms of predicting a study score. It’s been repeated constantly on this forum that ranking is all that matters, not your SAC score. This is how VCAA ensures that they are not advantaging those that receive ‘easy sacs’ while disadvantaging those that receive ‘hard sacs’.
For example, say your school had relatively easy SACs, your 94/100 May only place you in the middle of the cohort (unlikely but possible) and thus would likely scale down at the end of the year depending on your cohort’s exam performance. Vice versa hard SACs May mean that you have a very strong ranking and thus your U3 score may even scale to 100/100.
Lastly, exams are very important for study scores and no one can predict a study score with any degree accuracy from just one unit score.