All the FAFSA only schools only consider the number in school. One of my kids has almost all her COA covered by scholarships and her sister’s school awards based on FAFSA, so doesn’t know how much I pay or don’t pay.
I remember the question so well because when I was running the NPC at several schools, it asked for the number in school but said to omit any at a service academy, and the second child was thinking about a service academy at that time so I ran everything both ways.
Some of the NPC for CSS schools asked about tuition for the second child, or even for kids at private high schools. I assume those schools care about the amount of tuition paid since they asked.