How to understand the sentence "GDP per capita is 200,000 yuan"

GDP is also the gross domestic product. Generally, GDP is defined as the total market value of all final products and services produced by a country or region's economy in a certain period (a quarter or a year). So GDP is virtual.

Two graduate students in economics, A and B, were walking on the road and found a piece of shit. A said to B: I'll give you 50 million if you eat it. B once you listen, it's so easy to earn 50 million. It stinks. When it's a big deal, I take money to pump my stomach, so I eat shit. They walked on, feeling a little unbalanced. A lost 50 million for nothing and gained nothing. Although B earned 50 million yuan, it was also blocked by shit. At this time, I found another piece of shit, still hot. B finally found a balance and said to A: You eat, and I'll give you 50 million. When a wants to earn back the lost 50 million, what is eating shit? Didn't b eat it, too? So I also eat shit. It is reasonable to say that these two people should be balanced, but the more I think about it, the more I feel that something is wrong. Their capital didn't increase at all, but one person ate a lump of shit. So I went to the professor. After listening to their complaints, the professor burst into tears with excitement: Students, you should be happy. You just ate two pieces of shit and contributed 654.38+0 billion GDP to our country!