Throttle: a kilo of potatoes 1 yuan, and a hundred kilos of potatoes 80 yuan. Talk to the chef and ask him to research and develop new dishes, which can be used for multiple purposes. Now there are five ways to make potatoes in your restaurant, and let the chef make 20 kinds. If a dish is used more, it will naturally be cheaper, which will save the cost.
Saving begins when I was a child, which is very troublesome in detail. You should have a perfect system to make employees happy at work, to make employees actively think about saving and to improve their personal service skills. It all depends on you as the boss.