My churches (two previous were Baptist) publish their budgets. My current church has only 16% going to admin costs (building, maintenance, and salary I believe) while everything else went to mission work (we run . Everyone here volunteers their time though, which helps bring costs down. I don’t recall previous budgets, but I think they were closer to 50/50. I guess my current one is unusual, but 10% of 50 mil (according to this article) is surprising to me. That’s the lowest bar I’ve seen