In promoting the scheme of "small portions of vegetables" and "half portions of vegetables", it will increase the labor time and material cost, but with the promotion of small portions of vegetables, the raw materials and waste will be reduced accordingly and waste will be avoided. This is undoubtedly beneficial to the society, and it is also beneficial that some customers can only order small portions. The specific increase in time, manpower and material costs has several aspects: 1. Dish research and development costs: If it is necessary to research and develop new dishes to promote small dishes and half dishes, it will increase research and development time and labor costs, and may also increase procurement costs, because new raw materials will be purchased for new dishes. 2. Production cost: If the promotion of small dishes and half dishes needs to change the original food production process, it may increase the production time and labor cost. 3. Food packaging cost: If small portions and half portions need to be packaged separately, the food packaging cost may also increase. 4. Marketing cost of dishes: In order to promote small dishes and half dishes, it may be necessary to increase investment in marketing activities, such as advertising, promotion, marketing, etc., which will increase marketing time and manpower and material costs. In a word, the promotion of small portions and half portions may increase the cost of time, manpower and material resources, but the specific impact depends on the promotion strategy and implementation method. If we can effectively control these costs and increase sales and profits, then this promotion strategy is still very valuable.