Can someone please tell me what raw marks do I need to get to get >90 atar? (1 Viewer)

[JWNH48]

School rank (2012): 89

My ranks:
Standard english: 3/50
Mathematics: 40/112
Physics: 14/69
Chemistry: 26/90
Business studies: 3/66

Can someone please tell me what raw marks do I need to get to get >90 atar? Thanks alot

 

[anomalousdecay]

Standard English: probably a 90.

Maths: 90

Physics: 85

Chemistry: 80 to 85

Business Studies: 85