hi
concernedcitizenMannheim uses a very straight-forward system. A 2.0 German GPA gets 40 points over 60, a 2.1 gets 38, a 1.9 gets 42. Also for GMAT, every 10 points over 600 in GMAT, adds 3 points. It means, if you get 600, you get 0 points. If you get 640 you get 12 points.
As far as I know, they don't care if you are an international student or not, they just ask for the exchange semester. Such scoring is really stupid from my point of view, but it is what it is.
So you would get;
36 points for your GPA
39 points for your GMAT
2 points for your internship
Total=77. It is a very risky score to wait for Mannheim to announce admissions in late June.
But again, maybe there is an exception for the international students. If you can get those points, you can reach 99, which is a very safe score. You can get the most accurate information from the school, but they generally answer very late.
IMO, you have a great GMAT score, you can consider some other schools in case they say that they will not give those 22 points. You can actually target any school in FT MiM ranking with that score. Even HEC, LBS or St. Gallen is possible. In case you consider schools only in Germany, then you can easily make it to WHU and HHL with 730.