This is from Chip Pearson's site, specifically:

http://www.cpearson.com/excel/differen.htm

" ...
Generally, you cannot call a macro directly from a worksheet cell. For
example, the following code does not work: =IF(A110,MyMacro).

You can simulate the statement =IF(A110,MyMacro) by using the
worksheet's Change event.

Private Sub Worksheet_Change (ByVal Target As Excel.Range)
If Target = [A1] Then
If Target.Value 10 Then
MyMacro
End If
End If
End Sub

...."

Hope this helps.

Pete

Swingstage wrote:

The answer to this question will also solve my problem so if there is a way
to place a macro into a formula please what is it?

"Obe" wrote in message
...
I wish to write a formula that goes to the end value in a column and uses
that value for multiplying another cell.

I am trying to multiply cell a7 by the last entry in the range c3:c20. I
have the macro that goes to that entry but now need the steps to insert it
into the formula. At the start of the month only cell c3 has data. On the
second day c4 has data and so on.

Thanks