Shandong supervision company has several charging modes. Is the supervision of 9% in Shandong Mall high or low?

At present, the province's usual quotation is around 20%, including service fee invoice, enterprise income tax, disabled people's security fund and so on. The tax rate is about seven points. At present, the annual cost of registered supervision engineers in China is more than 30,000, with about 30,000 cost engineers and 20,000 senior titles. The operating cost of the company is about 12, so this is still very acceptable.