How do you get the data? I'm curious because there is a phenomenon here in Prague, Czech Republic, in which there are mostly empty restaurants and stores will o

How do you get the data? I'm curious because there is a phenomenon here in Prague, Czech Republic, in which there are mostly empty restaurants and stores will obviously have no hope of making rent. Like if you calculate how many customers go inside each day, and you assume they all bought the most expensive item, the total revenue would be less than the cost of rent for the location. Cynical Czechs all say that these companies are fronts for laundering money, but would it be possible for me, as a normal civilian to get hold of documents which would prove that? I thought that the finances of private companies were more or less secrets.