Sporting events such as the World Cup and the Olympics can bring very large profits for host countries. That is why countries try hard to be able to take on hosting such events.
One of the largest sporting events, which ended 16 days ago, was the "2022 Asian Games." The city of Hangzhou in China, which hosted these Games, was preparing itself from 2016 to 2020 to hold the Asian Games. During this period Hangzhou spent approximately 30 billion dollars on construction of the Games' main projects.
The image above shows statistics that the Asian Games moved during this period. It can be seen how effective such events can be, in a very short time, in the growth of many sectors.
See the original infographic (Persian)
Machine-translated from Persian by Namafar; the Persian original is authoritative. Read the original in Persian