You can try it out yourself, in my case the tuition dropped from $79k to $70k.
Which is still expensive for a family that makes $100k.
https://npc.collegeboard.org/app/bu?sessionId=N5uYUvK7OuteM4...
https://npc.collegeboard.org/app/bu?sessionId=N5uYUvK7OuteM4...
FM estimated twice IM which I take to mean BU uses IM.
Boston seems to have two calculators going. This is the one I found in Tuition & Aid, that provides institution-specific results. https://app.myintuitionapp.org/institution/2fc48230-f626-4d2...