I often hear people say that donations in the form of a monthly direct debit is more useful to charities than one-off donations, since it makes their cash inflow more predictable and easier to budget. Is this true, and if so, how much? If you run a non-profit, what percentage of a donation would you forfeit to have the donation come monthly, rather than yearly?
Context: I donate yearly, in November. I started doing this last year, when I tried (and failed) to get donation matching. This year, I failed again, and given the changes to donation matching terms, it seems unlikely I'll get donation matching again, so I'm considering switching to donation monthly.