One can never know the true earnings.

This former reality TV persona knows how to hide his assets. Rather than take a large salary on his very first season he formed a "production company" LLC and had it "co-produce" the show with with the actual production company. So he got 5% of the gross budget upfront, 25% of all licensing worldwide, 25% of net profits on an escalating performance based scale, and he retained ownership of name of the show which the network licensed from him for as much as $300,000 per episode.