When he says he's going to reduce drugs by thousands of percent, I think he looks at the price of drug x in, for example, Germany and sees a price of $10 then he looks at the price in the USA of $160. So the USA price is 1600% of the Germany price.

He claims to reduce them to the Germany price, and then screws up on how percentages work and says he'll reduce it by 1600%, instead of what he should say, which is reducing it by 94%.

So that's how I understand the comments he makes. Either way he's full of shit and won't actually reduce them at all, but I think I get why he thinks he is correct in stating percentages in the thousands.