Kernrechtsfrage
Whether a revision ground existed despite an unchanged health status because the invalid income had to be determined anew on statistical wages.
Extrahierter Entscheid
Yes. A revision ground can arise from a change in the invalid income, and the loss of the concrete job justified using statistical wage data.
Extrahierte Begründung
Article 17 ATSG allows revision not only for medical change but also for changes in comparison income. Once the insured lost the former job used to determine invalid income, the income had to be hypothetically fixed on the general labor market.