The US GDP decreased by 10% in April-June, which is a lot.

Notice how the article uses an indirect way to state this — with an "annualized" figure, which I think means "How much would the total decrease be if it continued at this rate for a year." Since it is clear that what happened in April will not happen every month, that is even more misleading than it would be in other situations.

Nonetheless, it is a big decrease and shows we are in for hard times.