Take five-year national debt as an example. Now the quotation is 95. 190, and the calculation method is:

95. 190 RMB×10000× 2.2% deposit (about this number) =2094 1 yuan.

So the first-hand national debt is about 20 thousand. It costs 50 yuan to move. The profit margin is around 2.2%. The lever is about 50 times.

All hands, thank you for your encouragement!