① If there is a fixed income, the amount of childcare fees can generally be 20% - 30% of the total monthly income. For those who bear the care of more than two children, the proportion may be appropriately increased, but generally shall not exceed 50% of the monthly income.
 Here, "total monthly income" refers to total wages, including wages, bonuses, etc. You can apply for a court order to investigate.
 ② If there is no fixed income, the amount of childcare fees can be based on the current year's income or the average annual income of the same industry, with reference to
 ① OK.
 Generally, the average annual income and average annual living expenses determined by referring to the Reference Standards for Compensation Items for Road Traffic Accidents are taken as the basis.
 ③ If there are special circumstances, such as children suffering from serious diseases for a long time, or children with disabilities, they can be appropriately increased.