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** Reply to message from Tom Davies <> on Mon, 26 Sep
2011 13:58:52 +0100 (BST)

It depends on what the user wants in the cell. If he wants the actual
percentage then use proper mathematical notation and write it as
(556.85/646.15)*100. That way there is no ambiguity for people or the
processor. If, however, since the percentage is used in calculations then
leave it as 556.85/646.15 and just change the cell format to percentage. That
will display the actual percentage as 86.xx, but leave the value for
calculations as .86xx.


Hi :)
It's not really wrong but there needs to be some indication that it is a
percentage figure.  The original numbers don't really warrant more than 2
decimal places.  Another way of removing problems with ambiguity would be to
write the equation as
= 556.85 * 100 / 646.15
Then it doesn't matter if  (100/646.15) is calculated first or the (556.85 *
100), either way the answer is about the same, hopefully exactly the same.  
Regards from
Tom :)

--- On Mon, 26/9/11, Andreas Säger <> wrote:

From: Andreas Säger <>
Subject: [libreoffice-users] Re: percentage to get number in Calc
Date: Monday, 26 September, 2011, 11:25

Am 26.09.2011 05:58, Steve Edmonds wrote:
Hi. A spreadsheet is a different way of working. At school we would have
learned 556.85 /646.15*100 to calculate the percentage but formatting in
the spreadsheet as a percentage saves multiplying by 100.

But 86.17968 is wrong. 86.17968 does not reflect the relation between the 2 numbers which is 

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