The honest answer is that it depends. Here is what it depends on.
Nobody likes that answer, so I am not going to leave it there. Below is exactly what moves the number, what the floor is, and who I am not the right person for.
What the call actually is
Twenty minutes. You tell me about the business, I tell you where you stand and roughly what it would take. If that number is wrong for you, you will know inside the twenty minutes rather than after three weeks of proposals.
I am not going to pitch you, and there is no deck. If I do not think I can move the needle for you, I will say so, and that has happened.
You will get a real number on the call. Not a range, not a starting-at, the number for your situation.