Each accompanying spouse or unmarried child under twenty-one adds a further processing fee of fifteen thousand United States dollars and a further gift of one million United States dollars. That per-person structure applies to a corporate sponsorship as well, so a family cost is a multiple rather than a single figure.
The published structure is per person, and it should be totalled honestly
For a household of four the arithmetic is straightforward and considerably larger than the headline number suggests: four processing fees, and a gift amount that increases with each accompanying family member. Before that arithmetic is done, no comparison with any other route is meaningful. Two further points belong in the same conversation.
A child is a derivative only while unmarried and under twenty-one, so a family with an older teenager should establish what happens if the process runs past that birthday. And because the framework proceeds through existing employment-based classifications, each family member's admissibility is assessed as well, which for a family with any complicated history is a matter to raise with a licensed U.S. immigration attorney at the outset rather than during processing.