Giving What We Can’s impact reports (when I last read them) suggested they had raised for effective charities £6 per £ spent using pessimistic assumptions or £60 per £ best guess.
The Life You Can Save raised $11 per $ spent for effective charities
Raising for Effective giving has raised $24 per $ spent, for effective charities.
EA London (which does not do much fundraising) roughly raised £2.5 per £.
Rethink Forward moves £7 per £.
This are all post hoc analyses of money moved to date, not estimates of future impact. The quality of the evidence for these is variable between the different programs and you can look into it. As well as moving money I believe all of cheese ALSO purport to have improved the effectiveness of donations given.
If helpful to provide a baseline / prior against which to judge these successes note that the standard fundraising ratio in the charity sector is that charities raise £4 per £ spent on fundraising.
Giving What We Can’s impact reports (when I last read them) suggested they had raised for effective charities £6 per £ spent using pessimistic assumptions or £60 per £ best guess.
The Life You Can Save raised $11 per $ spent for effective charities
Raising for Effective giving has raised $24 per $ spent, for effective charities.
EA London (which does not do much fundraising) roughly raised £2.5 per £.
Rethink Forward moves £7 per £.
This are all post hoc analyses of money moved to date, not estimates of future impact. The quality of the evidence for these is variable between the different programs and you can look into it. As well as moving money I believe all of cheese ALSO purport to have improved the effectiveness of donations given.
If helpful to provide a baseline / prior against which to judge these successes note that the standard fundraising ratio in the charity sector is that charities raise £4 per £ spent on fundraising.