Hotel compression fee

This is the small profits but quick turnover in business, reducing product accumulation, working capital and saving medicine time. You calculate, | yuan a catty, calculate to earn 20 points per catty, 500 jins earn 100, and all vegetables become elastic money. Retail, 500 kg, half of which is not sold out. But people will go back to 500 yuan to do a single business, with a net profit of 100 yuan. If you don't sell what others know, you sell it because there is competition in business.