Kernrechtsfrage
Whether the denial of an invalidity pension should be upheld based on the assessed residual work capacity and income comparison.
Extrahierter Entscheid
The denial could not be upheld; the correct income comparison yielded an invalidity degree of 43%, entitling the insured to a quarter disability pension.
Extrahierte Begründung
The court accepted a residual work capacity of 75% as the midpoint between 70% and 80%, used the more concrete validated income from the specialized job, and found that this produced a pension-relevant loss of earnings despite a 10% deduction.