How is this different from the Job Risk calculator?
Job Risk looks five years out at structural change in your occupation. This looks twelve months out at your specific employer. Organisational signals dominate here because they are what actually predicts the near term.
Does strong performance protect me?
Partly. In a targeted reduction it matters a great deal. In a whole-team closure or a site exit it matters very little, which is why it carries weight but does not dominate.