Please Note: This article is written for users of the following Microsoft Excel versions: 2007, 2010, 2013, and 2016. If you are using an earlier version (Excel 2003 or earlier), this tip may not work for you. For a version of this tip written specifically for earlier versions of Excel, click here: Controlling How Excel Interprets Percentages.
When you format a cell to display percentages, Excel assumes that whatever you enter into that cell in the future will be a percentage. Thus, if you enter the number.5, Excel translates the value as 50%. Likewise, if you enter .75, then Excel treats the value as 75%.
A potential problem comes into play, however, when you start to enter numbers greater than or equal to one. For instance, if you put in the number 12, do you mean 12% or 1200%? By default, Excel thinks you mean the latter. Excel includes a control that allows you to specify how you want it to interpret what you enter. If you want Excel to treat the value as 12% instead of 1200%, then you can follow these steps:
Figure 1. The Advanced tab of the Excel Options dialog box.
Remember—this configuration change only comes into play for cells that are already formatted to contain percentages. It has no effect on any cells formatted in any other way.
ExcelTips is your source for cost-effective Microsoft Excel training. This tip (8770) applies to Microsoft Excel 2007, 2010, 2013, and 2016. You can find a version of this tip for the older menu interface of Excel here: Controlling How Excel Interprets Percentages.
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2017-08-22 11:40:09
Jean Renaud
it becomes a lot more confusing when you enable the option "Enable Automatic Percent Entry" :
- If you enter ".5" Excel will Interpret "50 %"
- If you enter "0.5" Excel will interpret "0.5 %"
- If you enter "50" Excel will interpret "50 %"
- If you enter "." then press "backspace" then enter "50" in the same "edit" operation, Excel will interpret "5000 %".
* Triple Facepalm *
2015-08-20 02:22:25
Raj
Hi
I am trying to use
=if(B2=>0,B2,VLOOKUP(C2,C:E,3,FALSE)*B2-inthis case B2 would be 50%)
it return 0.5 as it treat B2 as 50%=0.5 (a number) and accepts it as True.
What I want it 182.5 (as E2=365).
I want 50% is not treated as number, then V lookup will Kick in.
I have found another way that is
=IF(LEN(A2)>0,A2,VLOOKUP(C2,C:E,3,FALSE)*0.5)
but it does not sound professional as I have to present this work and explain it to my students.
Thanks for your help.
Cheers :)
2013-12-15 05:35:21
Michael (Micky) Avidan
to add, means "to type beside..."
Michael (Micky) Avidan
“Microsoft® Answers" - Wiki author & Forums Moderator
“Microsoft®” MVP – Excel (2009-2014)
ISRAEL
2013-12-15 05:34:01
Michael (Micky) Avidan
To my opinion, the best "tip" is to adopt the "habit" to add the % symbol to every percentage value.
In such a case no misunderstanding and no miscalculations/displaying will occur.
Michael (Micky) Avidan
“Microsoft® Answers" - Wiki author & Forums Moderator
“Microsoft®” MVP – Excel (2009-2014)
ISRAEL
2013-12-14 23:35:38
Juan
Wonderful tip, now I understand why it appeared 12 as 1200 before. This is really helpful to know!
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Please Note:
This article is written for users of the following Microsoft Excel versions: 2007, 2010, 2013, and 2016. If you are using an earlier version (Excel 2003 or earlier), this tip may not work for you. For a version of this tip written specifically for earlier versions of Excel, click here: 
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