Will it affect the retirement age and retirement salary if the unit changes to individual to pay social security?

Hello, if the employee of an enterprise becomes a flexible employee, the payment base chosen by the individual is basically the same as that of the employee in the enterprise, then his retirement pension income will be basically the same as that of the original enterprise. In this way, the pension level approved after retirement will not be affected. If employees in enterprises become flexible employees, and the payment base chosen by individuals is lower than when they are on the job, or some people voluntarily choose the lowest level of 60% to pay premiums, then the pension level approved by them after retirement will inevitably be affected or even greatly reduced, which is inevitable ~