The tender offer adopts downward floating rate. When a fixed tender offer is adopted, the bidder promises to settle with a certain downward rate of fixed price, which is called downward rate. The downward floating rate is often the contractor's commitment to the employer when bidding, that is, to reduce a certain proportion on a certain basis. The contract price is determined according to the promised downward fluctuation range when bidding, and the final settlement price is determined according to the downward fluctuation range when settlement.
Winning the bid is to select the best bidder in the tender. From the bidder's point of view, it is the successful bidding and the contract of the winning project. The Bidding Law stipulates the procedures and standards for determining the winning bidder and the obligations that the winning bidder should earnestly perform, not only to ensure the fairness and justice of competition, but also to safeguard the results of competition.