Use A2="" instead of isblank, isblank only works if the cell is empty
maybe you have a formula in A2? This would be a shorter way

=IF(OR(A2="",A2<30%),"",A2-A1)

--
Regards,

Peo Sjoblom

(No private emails please)


"Jonibenj" <Jonibenj.1tw76l_1124255117.0331@excelforum-nospam.com> wrote in
message news:Jonibenj.1tw76l_1124255117.0331@excelforum-nospam.com...
>
> I have the following set-up with 3 cells:
>
> A1 - a target percentage value (30.00%)
>
> A2 - the actual value
>
> A3 - the deviation
>
> Each cell is formatted for percentages. I have inserted the following
> formula into A3:
>
> =IF(ISBLANK(A2),"",IF(A2<30,"",A2-A1)
>
> The formula is supposed to do either of three things:
>
> 1. If there is no value in A2, leave A3 blank.
> 2. If the actual percentage is 30% or lower, leave A3 blank.
> 3. If the actual percentage is over 30%, calculate the deviation from
> the standard.
>
> However, The fromula is not behaving! No matter what I do, the A3 cell
> remains blank! What have I done wrong???
>
> Jonathan.
>
>
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> Jonibenj
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