How exactly were the highly complex Trump Tariffs - essentially taxes on imports - worked out by the White House's brightest? The BBC has been looking at the White House published at what might look like a complicated mathematical formula calculations behind the numbers, but found out that it boils down to very simple math: Take the trade deficit for the US in goods with a particular country, Divide that by the total goods imports from that country and then Divide that number by two. That's It! I smell Nobel Peace Prize in Economics for Emperor Nero.