Recall that the order of the auction is regulated by Art. 29 "Electronic auction" of the Law of Ukraine "On Public Procurement" dated 12.25.2015, No. 922-VIII. According to this article, an auction participant may lower the price of his offer by at least one step from his previous price. In this case, the minimum step for lowering the price is determined by the Customer. That is, the Client must indicate the minimum size of the price reduction step during the auction in the announcement of the procurement procedure, which must be expressed in percentage or currency. The size of the maximum step of lowering the price of the Law of Ukraine "On Public Procurement" is not standardized. The participant determines it on his own: at his own discretion.