对中国关税到底是多少？

20%， announced before 4/2

34%， announced 4/2, 累计 54%

50%,  announced 4/7, 累计104%

announced 125% 4/9 ： https://www.bbc.com/news/articles/c5y66qe404po 

announced 145% 4/10， it is 125%+20% （before 4/2）。