Legal analysis: more than 4% can complain, commodity futures generally rise and fall by 4%, and the second trade fair will provide the range of the first price limit.

Legal basis: Provisions on Administrative Penalties for Price Violations

Article 7 Where an operator, in violation of Article 14 of the Price Law, uses false or misleading price means to trick consumers or other operators into trading with him, he shall be ordered to make corrections, his illegal income shall be confiscated, and he shall be fined not more than five times his illegal income; If there is no illegal income, a fine of 50,000 yuan to 500,000 yuan shall be imposed; If the circumstances are serious, it shall be ordered to suspend business for rectification, or its business license shall be revoked by the administrative department for industry and commerce.

Article 8 Where an operator, in violation of the provisions of Article 14 of the Price Law, sells, purchases goods or provides services by means of raising prices or lowering prices in disguised form, he shall be ordered to make corrections, his illegal income shall be confiscated and he shall be fined not more than five times his illegal income; There is no illegal income, a fine of 20 thousand yuan and 200 thousand yuan; If the circumstances are serious, it shall be ordered to suspend business for rectification, or its business license shall be revoked by the administrative department for industry and commerce.