Whilst no economist myself, it is pretty clear where Trump has fucked up his calculations, he is basing Tariffs on trade deficit., the n dividing deficit by US Exports and splitting the difference
it is Trade deficit / imports is what the US says the other country charges as a tariff.
eg China
US exports $145b and imports $440b , so deficit is $295b
295 / 440 =0.67 or 67% split the difference by halving it 33.5 and rounding up 34 and the tariff imposed on China is 34%
Likewise EU, $370.2B Exports Imports $605.8b, deficit $235.6b 235.6 / 605.8 =0.389 or 39% divided by two and rounded up gives 20% which is the tariff imposed on EU.
I used to think that Trump wasn’t the sharpest knife in the drawer, but hit proves that he is a complete imbecile