As a small employer, I don't mind to provide a number. I'll always provide a number if I have one in mind.
But anything intellectual, me providing a number is not as useful as you think. Often, I just don't know. Especially hiring outside my expertise.
I assume every applicant is worth $0 and it's up to them to convince me otherwise. I'm willing to go as high as you can convince me. .
The number you write isn't what the person is worth but what the position you are hiring for is worth.