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#1
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Adding % to gether?
This seems like a simple task to add 3 percentage figures from tree
different cells into a forth cell..... ie. 1.12% , 2.03% , 0.88% to give ... 4.03% in total cell But either I have a corruption or I have lost the plot!!! I get a figure that bears no resemblance to the value.... tried formatting the cell as a % then a number..... then * 100 / 100 in every combination/s and still it fails. Please embarrass me with a simple solution. |
#2
Posted to microsoft.public.excel.programming
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Adding % to gether?
I get 4.03%
Are the percentages derived or just manually entered? What is the figure you get that bears no resemblance? Gord Dibben MS Excel MVP On Sun, 23 Aug 2009 10:11:03 -0700 (PDT), Snowfire wrote: This seems like a simple task to add 3 percentage figures from tree different cells into a forth cell..... ie. 1.12% , 2.03% , 0.88% to give ... 4.03% in total cell But either I have a corruption or I have lost the plot!!! I get a figure that bears no resemblance to the value.... tried formatting the cell as a % then a number..... then * 100 / 100 in every combination/s and still it fails. Please embarrass me with a simple solution. |
#3
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Adding % to gether?
"Snowfire" wrote:
This seems like a simple task to add 3 percentage figures from tree different cells into a forth cell [....] I get a figure that bears no resemblance to the value Well, it would help us help you if you post __all__ of the numbers involved. But here are two observations which might help you. First, bear in mind that the numbers you see (1.12%, 2.03% and 0.88%) are probably rounded values. For example, the displayed value of 1.12% can be anything from about 1.115% to about 1.12499999999999%. Consequently, their sums can be anything between about 4.015% to about 4.045%. However, if that were the issue, I think you would see some "resemblance" to what you expect. You say you don't. Second, keep in mind that (x1/y1) + (x2/y2) + (x3/y3) does not equal the correct sum (x1+x2+x3) / (y1+y2+y3). So if 1.12%, 2.03% and 0.88% are computed by x1/y2, x2/y2 and x3/y3, you cannot compute the total percentage by simply summing the individual percentages. Again, if neither of those observations helps you see the problem, please post more details. ----- original message ----- "Snowfire" wrote in message ... This seems like a simple task to add 3 percentage figures from tree different cells into a forth cell..... ie. 1.12% , 2.03% , 0.88% to give ... 4.03% in total cell But either I have a corruption or I have lost the plot!!! I get a figure that bears no resemblance to the value.... tried formatting the cell as a % then a number..... then * 100 / 100 in every combination/s and still it fails. Please embarrass me with a simple solution. |
#4
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Adding % to gether?
On 23 Aug, 19:16, "JoeU2004" wrote:
"Snowfire" wrote: This seems like a simple task to add 3 percentage figures from tree different cells into a forth cell [....] I get a figure that bears no resemblance to the value Well, it would help us help you if you post __all__ of the numbers involved. But here are two observations which might help you. First, bear in mind that the numbers you see (1.12%, 2.03% and 0.88%) are probably rounded values. *For example, the displayed value of 1.12% can be anything from about 1.115% to about 1.12499999999999%. *Consequently, their sums can be anything between about 4.015% to about 4.045%. However, if that were the issue, I think you would see some "resemblance" to what you expect. *You say you don't. Second, keep in mind that (x1/y1) + (x2/y2) + (x3/y3) does not equal the correct sum (x1+x2+x3) / (y1+y2+y3). *So if 1.12%, 2.03% and 0.88% are computed by x1/y2, x2/y2 and x3/y3, you cannot compute the total percentage by simply summing the individual percentages. Again, if neither of those observations helps you see the problem, please post more details. ----- original message ----- "Snowfire" wrote in message ... This seems like a simple task to add 3 percentage figures from tree different cells into a forth cell..... ie. 1.12% *, * *2.03% *, * 0.88% * to give ... *4.03% *in total cell But either I have a corruption or I have lost the plot!!! I get a figure that bears no resemblance to the value.... tried formatting the cell as a % then a number..... then * 100 / 100 in every combination/s and still it fails. Please embarrass me with a simple solution.- Hide quoted text - - Show quoted text - Thanks for the replies Gord, Joe. Your second point hit home Joe. I see the problem now, you can't just add calculated % in the way I have done. I was calculating a collective from the calculate sub %. Since the % are displayed only to inform the user of met/missed targets I will approach this from another angle...... thanks again. Mike. |
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