"30% of the difference is 70% of the money"

The above is a (possibly imperfectly remembered) quote from Rep. Aaron Vega regarding the Promise Act and House 70 proposed by Governor Baker: when it comes to implementation, the difference is in the funding of low income kids.
And now we have the numbers.
Yesterday, MassBudget released a model of implementation of Governor Baker's bill, the Promise Act, and the status quo, projected through 2026.
Note, by the way, that the other House bill was not modeled, as, just as several of us have pointed out despite the unpopularity of the message, the bill doesn't have enough in it to model implementation. It isn't complete.

The differences among status quo, Baker's bill, and Promise are stark:

Status quo: $0.99B above FY19; Baker: $1.45B above FY19; Promise: $2.36B above FY19

MassBudget has included a spreadsheet which you can download to see what they project would be the difference for districts. I would also highly recommend reviewing the technical appendix (scroll down on the report page) to understand what assumptions the projections are based on (different assumptions = different numbers).

The big differences are the Gateways and the big differences are for the kids who have least.