The federal poverty level is based on the number of people in the family household. For example, the federal poverty level in 2023 for a family of 2 people is $19,720. But, for a family of 3 people the level is $24,860.
For the 2-person family household, 400% of the federal poverty level is $78,880 (4 x $19,720). For the 3-person family household, 400% of the federal poverty level is $99,440 (4 x $24,860).