>>In June, the European Central Bank announced that it had exchanged €500 million ($611 million) worth of US dollar reserves into yuan securities. This was a small shift—the ECB has €44 billion in foreign exchange reserves
Before declaring fall of USA, blaming Trump for apocalypse and anointing Xi as the new Emperor, lets take step and really see the numbers.
$611 million is a marginal amount when we are talking about foreign reserves, its sure not nothing, the Germans are basically telling Americans hey look what we can do here. Its a passive aggressive move but mostly symbolic.
If they buy more Yuan, and Yuan to Dollar exchange rate gets effected. Walmart needs to shop somewhere else because Chinese goods are not cheap any more.