European decency threshold

The Social Charter initially defined what many UK campaigning groups termed the Council of Europe decency threshold in the 1960s as 68% of average earnings within a national economy. The definition was modified to that of 60% of net earnings (as of July 2004) in order to take account of the difficulties experienced in taking into account initiatives such as redistributive tax systems when calculating adequate incomes.

Source: Wikipedia — European decency threshold (CC BY-SA 4.0)