Digital BW, The Print

Which do you sell first in an edition of 25? # 1 or # 25.
Which is more valuable? At what point in an edition do the prices
increase and by what increments.

I know the answers to these questions may vary but is there a relative
standard to this process?

I raised my prices and went to edition prints for my last show and
they sold well. $225 in a 16x20 frame with approximate 11.5 X 15.5
window. (I had sold these for $195 in the past as open edition 
i.e.not numbered)

I exhibited edition numbers 3, 4 and 5 in most cases, mixing it up a
bit so it would look like I'd sold editions in the past.

What are you guys selling your works for and what is your general
final framed size?

Thanks,

Tim