I need to create a auto sum macro where it will not just auto sum the numbers
but also put the sum symbol for me as following. (p.s. the numbers might not
be in a sequential cell order)

100 © ?©= 2100.00
200 ©
300 ©
400 ©
500 ©
600 ©

Basically, what I am trying to do is when I select the range of my numbers
to be summed, i will first have a pop up window asking me "what number
sequency would you like to start". Then, from there I can enter "c". Like
above, it should put the "c" in circle around my selections. If I put 1 for
the number sequency, then it will have "1" in circle instead of "c".


Secondly, it will then have another pop up window and ask me "where is your
destination cell?". From there, I will just click on the cell I would like
the sum total to be located. After all that, I should have the result with
"?©= 2100.00" at my selected cell.

Can anyone help me with this?
Thank you