ELI5: US Tarif for someone who’s living in a developing country

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Hi, I’m from Timor-Leste but frequently purchasing stuff and doing businesses in Indonesia. I saw on some news that tarif charged is around 64% to Indonesia, does that mean there’s going to be price hikes for stuff? Many of my friends also wondering the same but I don’t know how to explain in simple term to them… Many thanks beforehand