Insurance rate is the ratio of insurance premium to insurance amount, and insurance rate is also called insurance price. It is usually expressed by the insurance premium payable per 100 yuan or 1000 yuan.
The insurance price is quantified by the insurance company using actuarial theory. Insurance companies estimate future losses (predetermined loss rate) by compiling data, and usually adopt reasonable approximations. Actuaries use statistics and probability to analyze risk distribution, and insurers use this scientific principle and attach certain conditions to determine insurance rates.
Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.