The landlord can't find the answer to this question. Either the supplier or the hotel purchasing department knows these prices. First of all, the supplier will not post the price, because as long as he talks about the price online, his business will soon be gone, and someone will definitely hit the market at a lower price. The purchasing department will not say, because it is related to the transparency of hotel interests.
But the interests of suppliers are certainly not as high as those of hotels. I can only tell you in general that the price difference between drinks is generally not more than five yuan each, and a bottle of drinks is generally 20-80 yuan.