Ranks/Marks for 90+ Atar? (2 Viewers)

[Blueled]

Hey,
So im currently in year 11 and i just wanted to know what ranking/marks i would need to get a 90+ ATAR. My school isn't ranked that high, it was 272 in 2011, but it has been top 200's in most other years. The subjects i'm doing are,

Mathematics Ext 1
Advanced English
Physics
Chemistry
Economics
Studies of Religion (1 unit)







Thanks

 

[someth1ng]

Top 5 in each subject should get you 90+.