Depende ang sustento sa mismong sitwasyon ng pamilya, base sa:
- pangangailangan ng taong humihingi; at sa
- kapasidad na magbigay ng taong responsable.
“The amount of support, in the cases referred to in Articles 195 and 196, shall be in proportion to the resources or means of the giver and to the necessities of the recipient.”
Family Code of the Philippines
Maaari itong mag-iba depende sa sitwasyon, at maaaring tumaas o bumaba “according to the reduction or increase of the necessities of the recipient and the resources or means of the person obliged to furnish the same.”