When I teach, grading is done of course based on a very detailed breakdown. For example-
Concept Design 30% (7.5/30 Visual Presentation, 7.5/30 Storytelling, 15/30 Concept)
Final Deign 35% (10/35 Visual Presentation, 10/35 Technical, 15/35 Concept )
Photoshop Rendering 35% (15/35 Visual Presentation, 20/35 Technical)
100%
That being said, it can be very difficult to determine the grades as it is all relative.
- Relative to the other students. ie. how is one student compared to the best and the worst in the class/school
- Relative to themselves. Is this a good project that could have been great if the student gave 100%
- Relative to the industry/field. The best in the class may not compare to the best in another school/program…
There is no formula for those factors. I use my best best judgement, and take a little bit of all into consideration.
R