The method of calculating this new measure involves “replacing total inequality in the denominator of the conventional ratio with the maximum between-group inequality [that can be obtained, given the criteria above]” (Elbers, Lanjouw, Mistiaen, & Ozler, 2008). This has the added advantage of allowing for a more natural comparison of inequality across different times and settings because the measure itself is normalised by parameters present in the data. Calculating the achieved between-group inequality as a percentage of the maximum possible between-group inequality yields some very interesting results (see annex III, Table A.3.10).