How to calculate the property fee without charge for two years?

How to calculate the property fee without charge for two years: According to the Implementation Measures for the Management of Residential Property Service Charge, if the house is vacant for more than half a year after delivery, the property service fee shall be paid at 70% of the property service charge standard after confirmation by the owner or property user and the property service enterprise, unless otherwise agreed in the contract. Therefore, in the absence of special agreement with the property, if the house is vacant for more than half a year after delivery, you can only pay 70% of the property service fee.