How to calculate the self-purchased and self-built equipment and facilities when the property exits?

According to relevant information, liquidation value paid the property. The time for a property management community to sign a contract is generally around 10 years. When the contract time came, the property left. During the period of property management, the equipment and facilities purchased and built for the community cannot be taken away, and the property can choose not to take it. If the property wants to liquidate its assets, it is necessary to estimate the approximate price according to the value of these equipment and facilities, and then pay the property.