I can do this by giving a formula en every value (image 1), but I need to do only with one formula (image 2) alternating every two given values because there will be more tan 100 files that I need to do the same , may be I need a helper column...
Let's assume your data is in range C4:C###, and column Z is your helper column.
Then, enter 1 in cell Z4, put the following formula in cell Z5, and copy it down:
=IF(C5=C4,Z4,-Z4)
Now you can CF cells in column C based on the value of their counterparts in column Z.
Let's assume your data is in range C4:C###, and column Z is your helper column.
Then, enter 1 in cell Z4, put the following formula in cell Z5, and copy it down:
=IF(C5=C4,Z4,-Z4)
Now you can CF cells in column C based on the value of their counterparts in column Z.
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