What is middle class to you? Is it people who earn (per month):a) $ 1000 or less b) $ 1001 - $ 2500 c) $ 2501 - $ 3500?

Hello Syed, It depends on which country you are talking about.
For example in my home country (Egypt) anyone who's income is between USD is considered middle class, where as in UAE, where I live and work middle class is less than $5000.
And of course every country will have its own situation.

From financial strength point, in my view anything less than $5000 per month.

According to me, A middle class who can imagine to spend more money for his expense whereas that cannot fulfill due to other commitments.
Middle class who borrows money from bank to fulfill his needs.Yes ofcourse its less than $5k.