The San Bernardino County Department of Child Support Services determines parentage, establishes and enforces child support orders, and secures payments. The allocation of support per child is as stated in the attached Child Support Calculation.This comprehensive guide aims to demystify spousal support, providing you with the necessary insights to handle this sensitive aspect of family law. Use our child support calculator to get a quick estimate on how much child support you might pay or receive. No email or personal info required! If the amount calculated under the formula results in a positive number, the higher earner shall pay that amount to the lower earner. First, you must enter the spouses' gross incomes. Enter the gross incomes into the appropriate inputs in the California Maintenance Calculator form. As the Superior Court of California explains: "California state law says that every parent has a duty to financially support his or her child. However, in California, there is no straightforward formula or calculator to determine permanent spousal support.