Most Americans will make it to some rung of the middle class. Here’s how much you need to get to the next tier these days.

America's middle class, traditionally considered the backbone of the nation and its economic engine, has been shrinking for the past 50 years, according to a recent Pew Research Center survey.

The top 1% of earners in America hold more wealth than the entire middle class combined. Grant Cardone believes it’s time to change that. In December, Cardone posted, “America should have the ...