for the purpose of deciding whether a person has been discriminated against as compared to others there is no fixed rule as to what percentages should be used. The percentage which amounts to a "considerably smaller" proportion may vary from case to case, depending on all the facts and circumstances.
editor's note:
As from 1st October 2005 new wording removes the requirement that for indirect sex discrimination to be unlawful it must be "to the detriment of a considerably larger proportion of members of one sex" (previously in SDA 1975 s.1(2)(b)(i) - see the Employment Equality (Sex Discrimination) Regulations 2005, SI 2005/2467 and notes at Sex discrimination/2005 and 2008 amendments ).
See Sex discrimination/single parents for main relevant notes.