Does something like this do the trick? https://www.charitynavigator.org/index.cfm?bay=content.view&cpid=40 https://www.charitynavigator.org/index.cfm?bay=conte

Does something like this do the trick? https://www.charitynavigator.org/index.cfm?bay=content.view&cpid=40 https://www.charitynavigator.org/index.cfm?bay=content.view&... --> Like if my revenue is $R, I'd have to pay $T in taxes That part is harder to answer, but not necessarily as important as the latter. What you can more easily find it "if I donate $100, what do I get back?"