Presently, 2,000 yuan is 326.56 U.S. dollars. Average inflation is about 3 percent annually, at least for the dollar. It seems a fairly reasonable prediction for the yuan, as well. The year 2220 is 206 years from now. Plugging numbers into this thing, it looks like:
But of course, it gets a little more complicated. One dollar may equal 6.12 yuan, but what does 6.12 yuan buy in China? Here's a handy site with a wealth (no pun intended) of information on cost of living around the world.
Right now, it lists a mid-range bottle of wine at $13.07 (converted to dollars). In the U.S., it lists the same at $12. So the yuan isn't quite as good at buying wine as the dollar, but it is very close.
Obviously it's impossible to really know what is going to happen in politics and central banking in the next 206 years. The yuan has replaced the euro, after all. I was just curious about the maths. It would seem, however, that we are seeing almost no inflation and probably periods of deflation.
In my experience with haggling in markets (though I haven't had much and it's been many years) you might expect those "transient" prices to come down by 50%. Is that about right?