If there is no contract, there are several ways:
1, the price of each item quoted by Party B in the tender documents, or how much direct fee is charged for each item.
2. If conditions permit, directly agree on the price.
3. Directly agree on the value of the direct fee.
4. Upon completion, it shall be settled according to the facts.
Extended data:
Direct engineering costs include labor costs, materials costs and construction machinery use fees.
Labor costs, including basic wages, wage subsidies, auxiliary wages for production workers, employee welfare expenses and labor protection expenses for production workers.
Material cost (original material price, material transportation and miscellaneous fees, transportation loss fees, purchase and storage fees).
Construction machinery use fee (depreciation fee, major repair fee, frequent repair fee, installation fee and off-site freight, labor fee, fuel power fee, tax).
References:
Baidu encyclopedia-direct fee