Hi Sudev,
To calculate the NATA cutoff, your board percentage is added to the half of your NATA score. In this case, 84.6+ (109/2) = 84.6 + 54.5 = 139.1.
A NATA cutoff of 139.1 out of 200 is a very good score. You can definitely try for a merit seat in your state counselling. This depends on your native domicile.
All The Best
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