[Cronos]

Those $8 or $9 are worth a lot more in China than in the US due to PPP: goods and services that would cost at least I'd reckon $80/$90 could be obtained in China for the yuan equivalent of $8/$9

[Boiler Plate]

Those $8 or $9 are worth a lot more in China than in the US due to PPP

Which is the whole point. The ChiComs do not want any money leaving the country.