After obtaining PR, do we need to pass a test with a certain percentage to qualify for PR approval in Germany?

No, after obtaining permanent residency (Niederlassungserlaubnis) in Germany, you do not need to pass any further tests or achieve a specific percentage to keep or qualify for your PR status.

To get permanent residency, you must typically meet these requirements:
- 5 years of continuous residence on a valid permit
- 60 months of pension contributions
- B1 German language proficiency
- Pass the "Life in Germany" test (covers law and society)
- Sufficient finances and living space
- Clean criminal record

Once approved, maintaining PR mainly requires following German laws and regulations. No additional tests or scores are needed.