Actually no one knows, except possibly Trump, if he has net of his six bankruptcies any profit at all. Most likely, he doesn't. Certainly the IRS doesn't know. They have only a pile of suspect returns. Certainly the public does not know. They have no returns at all! Perhaps, Robert Mueller knows. We do know, however, that in the 1990s, when he had personally guaranteed 80% of a billion dollars on top of four more billion owed to ~70 Banks, he was rescued in his darkest hour by laundering Russian Oligarch money. And ever since, up until he got himself elected President with the help of Russian Hackers, he had been heavily dependent on a stream of money from laundering and whatever he could rake off the top of new credit extended to him from Russian sources in a quid pro quo for helping them launder their ill gotten gains stolen from the Russian People. Trump is not a good business man; certainly U.S. Banks don't think so. It remains to be seen whether he is a competent thief. If he dies without ever having spent a night in jail, he may claim that he is at least more competent than Madoff. It might be the only truthful claim to ever escape his lips. Poor Bernie!