Many economists already believe it’s a matter of time before Americans start to see sticker shock from the tariffs President Donald Trump has enacted. That timeline could speed up even more if Trump follows through with his latest package of tariff threats slated to take effect in three weeks.

This week, the president began sending letters to U.S. trade partners outlining what their proposed tariff rates will be.

US President Donald Trump unveiled a new round of tariff demand letters on Wednesday, including a 50% rate on Brazil, one of the highest so far announced for the levies which are set to hit in August.