The enterprise bought me two social security files. How much do I have to pay personally?

Endowment insurance is paid by both enterprises and employees, with enterprises paying 20% and individuals paying 8%;

Medical insurance is paid by both enterprises and employees, with enterprises paying 7.5% and individuals paying 2%;

Unemployment insurance is paid by both enterprises and employees, with enterprises paying 2% and individuals paying1%;

Industrial injury insurance, paid by the enterprise, paid by the enterprise1%;

Maternity insurance premium, paid by enterprises, enterprises pay 0.8%;

So your personal contribution is: 2030*(8%+2%+ 1%)=223.3 yuan.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.