Key legal question
How should the hypothetical income comparison be carried out when the pre-injury wage may have been below average for invalidity-extraneous reasons?
Extracted holding
Because the claimant could no longer have worked for the former employer after its bankruptcy, both hypothetical incomes had to be based on LSE tables rather than the actual last wage.
Extracted reasoning
Invalidity-extraneous factors are not ignored only on one side of the comparison; if they affected the pre-injury wage, they must be reflected symmetrically or not at all. Here the prior employer had gone bankrupt, so the last actual wage was no longer a suitable benchmark.