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How do I get the retrieved value changed automatically to either a plus or a minus in Excel 2007?

Posted on 2016-09-30
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Last Modified: 2016-11-07
I have this formula for retrieving a value:

=Index(Travbanor!A6:A100;Match(C1;Travbanor!B6:B100;0))

The retrieve value might be a minus value, a 0 or a plus value. If a minus value or a plus value the minus/plus should be reverted to the opposite, if a zero nothing should happen.
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Question by:hermesalpha
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Expert Comment

by:ProfessorJimJam
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use this

=(Index(Travbanor!A6:A100;Match(C1;Travbanor!B6:B100;0)))*-1
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Author Comment

by:hermesalpha
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I use a vlookup function instead, so I wonder in which position I should place your *-1 in this formula?:

=IFERROR(VLOOKUP(C12;Travbanor!B6:L100;11;FALSE);"")
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Author Comment

by:hermesalpha
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Also, can I have the zero written out if a zero is found?
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Assisted Solution

by:ProfessorJimJam
ProfessorJimJam earned 85 total points
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wrap the entire formula inside to parenthesis and then multiply by minus one -1

like this =(IFERROR(VLOOKUP(C12;Travbanor!B6:L100;11;FALSE);""))*-1
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Expert Comment

by:Rob Henson
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I would say the *-1 has to be within the VLOOKUP or you risk multiplying "" by -1.

=(IFERROR(VLOOKUP(C12;Travbanor!B6:L100;11;FALSE)*-1;""))

Or put the minus in front of the VLOOKUP:

=IFERROR(-VLOOKUP(C12;Travbanor!B6:L100;11;FALSE);"")

Minusing a negative number gives positive, and vice versa. Minus 0 is still zero.
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Author Comment

by:hermesalpha
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Thanks, that worked when I put the *-1 within the VLOOKUP.

Is there any way to format this cell only so it always displays a zero?
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LVL 31

Expert Comment

by:Rob Henson
Comment Utility
To display 0 no matter the actual value is possible with custom format:

"0";"0";"0";"0"

But why would you want to do that?
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Author Comment

by:hermesalpha
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I mean, if there is no minus value and no plus value to retrieve but there is a "0" (not empty cell, but "0" is written in it), then I want this value also to be retrieved (not only minus or plus value to be retrieved).
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Expert Comment

by:Rob Henson
Comment Utility
If the VLOOKUP result is zero or blank then the result of the formula will be zero. The IFERROR part of above formula will put blank when the lookup value is not found. If you want zero in that instance change the "" at the end to 0
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Author Comment

by:hermesalpha
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I tried now adding a "0" at the end (where the "" where). But nothing is displayed in the cell when the value to retrieve is "0".
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LVL 31

Expert Comment

by:Rob Henson
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Can you copy your actual formula here to look at?
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Author Comment

by:hermesalpha
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This is my current formula:

=(IFERROR(VLOOKUP(C12;Travbanor!B6:L100;11;FALSE)*-1;0))

I don't want to turn on global displaying of zeros as I'm not sure the zeros should be displayed everywhere. Is there any way to format a single cell to display zeros?
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LVL 31

Expert Comment

by:Rob Henson
Comment Utility
If you put the 0 in quotes it will be text so will still show even with global hiding of zeros.
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Author Comment

by:hermesalpha
Comment Utility
I tried now, but same as before, no zero is displayed:

=(IFERROR(VLOOKUP(C12;Travbanor!B6:L100;11;FALSE)*-1;"0"))

But what if I delete the "IFERROR"?
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Accepted Solution

by:
Rob Henson earned 415 total points
Comment Utility
The IFERROR covers the scenario when value in C12 is not found in range Travbanor!B6:B100 (first column of lookup range). Without the IFERROR you will get #N/A error.

If the value in C12 is found and the result from column 11 is blank or zero then the result will be zero which will be hidden by the suppression of zeros. If you still want these zeros to show then you will have to allow for it in the formula:

=IFERROR(IF(VLOOKUP(C12;Travbanor!B6:L100;11;FALSE)=0;"0";VLOOKUP(C12;Travbanor!B6:L100;11;FALSE));"0")

This says if the result of the lookup is zero put "0" otherwise put the result; if the result is an error then put "0".
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Author Comment

by:hermesalpha
Comment Utility
It almost worked now, zero is dislayed when it should. But I need to put the *-1 somewhere to have the minus/plus switched.
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Author Comment

by:hermesalpha
Comment Utility
This worked, now I get the minus/plus switched also:

=IFERROR(IF(VLOOKUP(C12;Travbanor!B6:L100;11;FALSE)*-1=0;"0";VLOOKUP(C12;Travbanor!B6:L100;11;FALSE))*-1;"0")
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Author Comment

by:hermesalpha
Comment Utility
No, my second change adding the *-1 in two places did not work, because I do not get the zero displayed then.
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Author Comment

by:hermesalpha
Comment Utility
This worked, now I get zero displayed and also switched minus/plus:

=IFERROR(IF(VLOOKUP(C12;Travbanor!B6:L100;11;FALSE)=0;"0";VLOOKUP(C12;Travbanor!B6:L100;11;FALSE)*-1);"0")
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Author Closing Comment

by:hermesalpha
Comment Utility
Thanks for the solution, works fine now.
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