Why are the quotations given by different manufacturers of the same jewelry different?

I found two jewellery processing factories for the same jewellery sample. Why is there a difference of six or seven yuan between the quotations given by the two factories? Today, the author will have a brief chat with everyone. First of all, we first understand the quotation methods of general factories including: raw material costs, processing and production costs, staff costs, rent and water and electricity costs, plus profits, and the result is a quotation for jewelry. Except for profit (some are calculated at 30% gross profit, some are calculated at 40%), other costs are basically the same, so normally, no matter which brooch factory quotes, the difference should not exceed 3 yuan money. As for the same piece of jewelry, the price difference between the two factories is about ten yuan. There are several explanations: 1. The quality of the craftsmanship, the quality and the price are also different, this is also recognized by every industry. 2. Either it is a random quotation, or you don't do it yourself, and transfer the order to other brooch factories for production, and you can profit from it. For more relevant news and information, please pay attention to the website, or online (phone) to consult and discuss jewelry processing matters. Xiamen Co., Ltd. can provide ODM for similar samples/new models/revisions. OEM customers can accept custom processing with patterns. 16 years of experience in brand jewelry OEM production, welcome friends from all walks of life to visit, guide and negotiate business. Next: This is the last one. Previous: Is there any size for the open ring? Can anyone wear it?