Final answer:
German and EU companies have 50% of their potential outside Germany.
Step-by-step explanation:
The question is related to Germany and EU companies. It is asking about the percentage of their potential that is outside Germany. To answer this question, we need to consider the information provided, which states that Germany exports about 50% of its GDP. This means that half of the potential of German companies is outside of Germany. Therefore, we can say that 50% of the potential of German and EU companies is outside Germany.