After reading your supplementary question, you can make one-time compensation according to the standard of "Measures for One-time Compensation for Casualties in Illegal Employment Units". If it is 10, 50,000 yuan is basically ok.
Measures for one-time compensation for casualties in illegal employment units
Article 5 One-time compensation shall be paid according to the following standards:
The compensation base is level 1 disability 16, level 2 disability 14, level 3 disability 12, level 4 disability 10, level 5 disability 8, level 6 disability 6, level 7 disability 4 and level 8.
The compensation base mentioned in the preceding paragraph refers to the average annual salary of employees in the industrial injury insurance co-ordination area where the unit is located.