[@MyCatGinger] We could break it down by that system, but that would require knowing income for each person. xD The problem with sub-divisions like "upper middle class" and such is that people define it differently. Some millionaires consider themselves to be upper middle class, for example. 

I guess my division of people is more defining of the Upper Class, Middle Class, and Lower Class.
Upper Class = You live comfortably without worry and can afford luxury
Middle Class = Can afford some luxury and live comfortably, but may have some financial hurdles
Lower Class = You struggle, for real.