<p>It varies, as far as I know. </p>
<p>Most Stern professors follow the ‘Stern Curve’ bell curve grading ie. 30-35% As, 50-75%Bs and 15% Cs. But others courses like Math and other CAS courses follow the regular percentage method ie. 90+ As, 81-90 Bs so on and so forth. Or each course will have pre defined cut-offs in the syllabus announced in the beginning of the semester.</p>
<p>You are indeed very fortunate and blessed to have recieved such a good aid amount. Most people you will meet will ususally crib about how stingy NYU is as far as aid is concerned. 20k-I think is the max everybody thinks NYU likes to offer to most people.</p>