According Statista.... A business reporting service

There are 6.3 million sellers on Amazon worldwide.

Of those 1.5 million are active sellers

Of those active sellers, 144,000 sellers have annual revenue greater than $100,000 USD

So... 9.6% of the active Amazon sellers have revenues of $100k or more. Not profit but gross revenue.

It's not easy to sell on Amazon. It behooves you to learn the Amazon systems inside out or hire a management firm to run your store (and hold them accountable to produce you worthwhile profits).