Hi Richard,
Specifically you want a formula to be used and then you want
that formula to change another cell and then for the formula
to disappear.
A formula cannot change the value in another cell.
Try to explain what you want to do and what you
have in a cell. It is unreasonable to try to answer a
question that is not clear.
The closest I can think of might be an Event macro
that creates a value in column B when a cell in Column A
changes, but does not change the value in column B when
Column A is cleared. With an Event macro you might
have the calculation within the macro. But without a clear question of
*exactly* what you want, I feel that it would be a waste of
time including your to try to answer and not provide a
correct answer.
Also the words "Excel" or "help" or "urgent" for that
matter have very little meaning in an Excel newsgroup.
So effectively you have entered a question without a subject
title. Please try to make the subject match the question,
and make sure that the question is clear.
HTH,
David McRitchie, Microsoft MVP - Excel [site changed Nov. 2001]
My Excel Pages:
http://www.mvps.org/dmcritchie/excel/excel.htm
Search Page:
http://www.mvps.org/dmcritchie/excel/search.htm