I answered this question in Baidu. Here's the thing: people often say that the point is a few percentage points or a few thousandths. The unit price of concrete you mentioned. The market price of C25 in 280 yuan is lowered by 2 1 minute, lowered by 2 1 minute, and lowered by about 60 yuan. One fifth. In other words, the unit price of C25 is 220 yuan /m? . According to one thousandth, low 6 yuan /m? . = = = The concrete trade union thinks that the reduction of concrete unit price should be a few thousandths. That is, the unit price of C25 concrete is 274 yuan /m3. = specific cost information price, every city has its own website, you can consult it. If you download the website, now everyone generally uses Guanglianda to serve the Shinkansen, but it is not comprehensive and it is not the latest information price. In addition, each region has a specific association. The association will have a market that knows the price. Information price is the price of a book published by a business association, which is published every two months. You can generally buy it in Jianshe Bookstore, 30 yuan/Ben. A reduction of 2 1 minute means that the local price in the book is C30,345 yuan/square. The mixed commodity price is the price difference adjustment of 345*( 1-2 1%) commercial concrete.
The price difference between commercial concrete and concrete in the comprehensive base price can be adjusted separately.
_ 1m3 price difference = commodity concrete price-concrete price in comprehensive base price-19.57 (on-site mixing fee)
_ The price of commercial concrete in the formula is the information price 1m3 issued by the local engineering cost department.
_ price difference = number of commercial concrete × 1m3 price difference
_ The number of commercial concrete in the formula is the same as that of off-site transportation. But when the price difference is different, it should be calculated separately. Let's just say that your contract is too general Literally, there is not much problem with the algorithm of Party A's budget officer.
But you can give your opinion on some details, such as the situation you put forward.
But the most important thing is to reply to the project manager, and the company's approval will be fine. If it is not recognized, it is necessary for the relevant personnel who signed the contract with Party A to explain the differences and negotiate an acceptable algorithm.