Drug companies may put a markup on drugs from 1000% to 10,000%, maybe he means he will only allow them to put a 600% markup on them, but he couldn't say it that way because drug companies would not like that. Most people are not good with math. Most Americans believe the import tariffs are paid by the country shipping goods into the US, but it is paid by the companies importing those goods and passed on to the buying public, driving up inflation.