How do atar calculators convert HSC marks to scaled marks? I've seen that HSCNinja's atar calculator provides a table with all the scaled marks for your particular HSC mark from recent years (I've attached a picture to show you if you don't know what I'm talking about). Does anybody know where they get this data from and how accurate it is?
![hscninja data.PNG](/data/attachments/29/29809-f5e8930f7630a9070fc40ae8dae11f6b.jpg)
![hscninja data.PNG](/data/attachments/29/29809-f5e8930f7630a9070fc40ae8dae11f6b.jpg)