What is the calculation standard of water, heating, electricity, fire protection, weak current, safety management and cleaning and maintenance costs in shopping malls?

1. The calculation standard of these expenses should be the average of the actual years. 2. The security administrator's consumables fee should be set according to the actual needs of the work. 3. Cleaning consumables should be calculated according to the actual average value of previous years and the standard of new demand and new post increase cost. In a word, we need to be realistic and consider saving. This is a principle that can be completed after it is formulated. It can be revised every year according to the actual situation.