If the rental contract has not expired, how to calculate the unilateral breach of contract?

If the lease contract does not expire, the liquidated damages shall not exceed 30% of the contract amount. Because there are relevant laws and regulations, the agreed liquidated damages can be changed if they are too high or too low. If the agreed penalty exceeds 30% of the actual loss, it can be considered too high and can be reduced. If there is no agreement on liquidated damages and the law does not stipulate the proportion or amount of liquidated damages, as long as the breach of contract causes losses to the other party, the breaching party shall pay compensation to the other party. The amount of compensation shall be determined according to the actual losses suffered by the other party. The parties may agree that when one party breaches the contract, it shall pay a certain amount of liquidated damages to the other party according to the situation of breach of contract, and may also agree on the calculation method of the amount of compensation for breach of contract.

When the creditor or debtor no performance at all is in debt, he must pay a certain amount of money to the other party as agreed. Its establishment is to ensure the performance of the debt, even if the other party has not suffered any property losses, it should also pay liquidated damages in accordance with the provisions of the law or the contract.

Legal basis: Article 585 of the Civil Code of People's Republic of China (PRC).

The parties may agree that when one party breaches the contract, it shall pay a certain amount of liquidated damages to the other party according to the situation of breach of contract, and may also agree on the calculation method of the amount of compensation for breach of contract.

If the agreed liquidated damages are lower than the losses caused, the people's court or arbitration institution may increase the liquidated damages at the request of the parties; If the agreed liquidated damages are excessively higher than the losses caused, the people's court or arbitration institution may appropriately reduce them at the request of the parties.

If the parties concerned pay liquidated damages for delayed performance, the breaching party shall also perform the debt after paying the liquidated damages.