How did Obama go from a net worth of $1.3 million to an estimated net worth of $135 million, on a salary of $400,000 per year? 

Clinton also went from a net worth of $1.5 million to a whooping $241.5 million after the presidency. 

Another notable increases:

▪️Carter $2.3M > $10.7M
▪️George H.W. Bush $4M > $23M
▪️George W Bush $20M > $40M