How to calculate the ratio of the total population plus the number of insured persons?

How to calculate the ratio of the total population plus the number of participants is the actual number of participants/participants * 100%= completion rate. Social insurance participation rate refers to the percentage of people who actually participate in social insurance in the country to the total population that should participate in the country. Insured by the unit, with the actual salary as the payment base. The full amount of social security purchased by the unit shall prevail. Social security is actually called social insurance, which is an important part of the social security system. Refers to an income and compensation system provided for loss of working ability, temporary loss of jobs or losses caused by health reasons. Social insurance includes five specific items, namely, basic old-age insurance system, basic medical insurance system, work-related injury insurance system, work-related injury insurance system and maternity insurance system, which are collectively referred to as five insurances.