Break down which activities have led to which members in as much detail as possible.
Justify the “Counter-factual donation rate” more deeply. Use a graduate volunteer’s time to dig into it and present multiple explorations of it, some of which don’t rely on people’s subjective estimates of it when asked by GWWC at the time they’re pledging to it. Include some in-depth exploration of the counter-factual rate for a few members.
Thank you, my top two suggestions would be:
Break down which activities have led to which members in as much detail as possible.
Justify the “Counter-factual donation rate” more deeply. Use a graduate volunteer’s time to dig into it and present multiple explorations of it, some of which don’t rely on people’s subjective estimates of it when asked by GWWC at the time they’re pledging to it. Include some in-depth exploration of the counter-factual rate for a few members.