Larew: People in the lowest income quintile had a much higher percentage increase in average income over the last ten years than did those in the highest quintile  So their economic prosperity increased relative to the highest quintile' s  Mendota: I disagree
The average income for the lowest quintile may have increased by a greater percentage, but the absolute amount of the increase in average income was surely greater for the highest quintile
change in the economic prosperity of the lowest income quintile is more accurately measured in terms relative to the highest income quintile than in terms relative only to the lowest income quintile