What am I missing (again)

[welshgasman]

What is happening?

OK, fairly familiar with Excel.

I have a workbook and in column D I have a formula =IF(AE83=0,"NIL",AE83) for each relevant row.

AE83 has formula of =SUM(E83:AC83)

Basically I am summing the row. When AE is zero I want to show NIL in column D.

This works exactly as intended for most cells. I have conditional formatting to fill as Green for those that show NIL.

Two rows show 0 in column D and then show Red due to the CF.

I've copied cells showing NIL to those errant cells and it make no difference, hence this post.??

TIA

 

[Fluff]

Sounds like those cells are not 0.00
Do you have formulae in the cells being summed?
With one of the problem cells try expanding the number of decimals being show to 15.
do you get something like 0.00000000000001

 

[welshgasman]

Doh

Thank you Fluff
Why couldn't I think of that.?

I do have formula in the cells being summed, but only something like =159.99+230+325.98

One shows
[TABLE="width: 165"]
<tbody>[TR]
[TD="class: xl63, width: 165, align: right"]-0.00000000000012256862

and the other
[TABLE="width: 165"]
<tbody>[TR]
[TD="class: xl65, width: 165, align: right"]-0.00000000000001819031[/TD]
[/TR]
</tbody>[/TABLE]
[/TD]
[/TR]
</tbody>[/TABLE]


I am only using currency amounts, so have no idea as to why that is as it is, but now I have a clue I can dig deeper.

Many thanks again.

 

[Fluff]

One way round the problem is
=ROUND(SUM(E83:AC83),2)

 

[welshgasman]

Yep, did that and now have Nil etc.

Still do not understand how values got to that accuracy, as I mentioned, there are only currency values in the rows.

 

[Fluff]

It's down to something called "Floating point precision"
A very simple example is

Excel 2013/2016
	A	B	C
1	1.20000000000000000	1.10000000000000000	0.09999999999999990
Sheet2

Cell Formulas
Range	Formula
C1	=A1-B1