What should I say if I want to increase the price?

To gain sympathy is called "for life", to make people understand is called "increasing costs". To be more sophisticated is called "price leverage", to reduce public anger is called "reasonable increase", and to convince customers It’s called “the market pulls things that are scarce and makes them more expensive”, keeping pace with the times is called “improving national living standards”, and politics is called “inflation”. It would be better to add a slogan, “First-class service, clear price. "Or tell the guests that the country's economic development and GDP increase will inevitably lead to a certain price increase. I hope they can understand. I'm not very talented, so I can only think of so much.