Eh..... You might want to revisit your financial premises and calculation.  Goods imported to US are in Yuan 4% cheaper in relation to the Dollar. Those 200 billion are no longer 200 billion but 192 billion.  Slapped with a tariff meaning 19.2 billion @10%.....  So, no zero at all.  The other 300 billion you reference ( 500-200) just got 4% cheaper. Meaning, it is a deduction to the import side.  Looking at the export side, when these stay on equal footing, it means China has to pay  4% more, meaning either inflation is hitting China, or companies lose real profit.  The Chinese stocks have lost enormous value,  3 trillion dollars at least. Stocks underpin the shadow banking system. Which underpins the corruption and expansion of China.  Look further then the length of your nose.