What is the gross profit margin of drinks in the entertainment hotel industry?

The price of small bottles of beer is 4-7 yuan, and that of large bottles is 5-9 yuan. Generally, the price of red wine ranges from 30-500 (generally, the price of bar 98 or 108 is just over 30), and the price of foreign wine is about 80- 170 (generally, bar 500), such as Hennessy xo, which is more expensive. I worked as a night manager in a bar for seven years. Bars make huge profits, but their average life expectancy is not long. A bar with good business will be back in half a year! ~~