According to the Chronicle, MIT said that the "average aid package to students would be about $24,600, including grants and loans."
Harvard's average financial aid package this year is approximately $23,000. As of next year, Harvard students will only have to contribute $3,150 of "self-help" money.
The decrease in the "self-help" requirement is in effect an increase in the overall aid package given to students. Students usually meet self-help requirements through loans or jobs.