How much does it cost to open an agricultural store and what documents do you need to apply for?

The problem of people's "difficulty in obtaining certificates" once became the focus of national attention. Almost everyone has experienced the difficulty of obtaining a certificate, and many grass-roots governments have been criticized for a long time. There is another reason why "difficulty in obtaining a certificate" has become a "pain point" for the whole people, and that is: there are really many documents that we need to apply for all our lives! So, how many permits do you need to live in China? What are their functions?