Question

What percentage of the 27.3 million businesses in the united states are small companies with less than 500​ employees?

Answer 1

Of the over-27 million businesses, only 18,500 employ over 500 employees. 18,500/27.3mil = 0.0678%, so subtracting that from 100% leaves 99.9322% of all companies having a workforce under 500 employees. These are the "small businesses."