Thanks to Jim and Vergel, I have now perfected the formula to look like this IF((RANK(AC3,AC:AC,0))<.05*(COUNT(AC:AC))),"Very High",IF((RANK(AC3,AC:AC,0))<0.2*COUNT(AC:AC,0)),"High",IF((RANK(AC3,AC:AC,0))<0.5*COUNT(AC:AC,0),"Medium","Low"))) This is applied to a long list of potential risks which then have to be categorised. I have actually substituted cell references for the 0.05, 0.2 and 0.5 multipliers, so I can change the number of each level by changing one number only. I must admit when I first applied Jim and Vergel's answers it didn't work, so having understood what they suggested, I started from scratch, building the formula one level at a time. Again thanks to Jim and Vergel for pushing me in the right direction!! Regards Geoff Culbertson Petersfield, UK ----- Original Message ----- From: "Vergel Villacorta" <atrocallivlegrev@xxxxxxxxx> To: <mso@xxxxxxxxxxxxx> Sent: Thursday, September 13, 2007 3:35 AM Subject: [mso] Re: Conditional format of %range of column > Geoff, > If the formula you were using in the conditional formating function gives > you the correct answer in the first cell then you just have to put some > changes on it. > > <=(COUNTIF($AC$3:$AC$500,"*"))*0.05 > > putting the dollar cell on the cell reference makes the cell an absolute > field, that if you move or copy the formula it will still refer to that > cell range. with that formula you will have to change the "0.05" for your > other criteria. > > You can also try this formula, > > to meet your 1st criteria of top 5% > IF((RANK(AC3,$AC$3:$AC$500))<(0.051*(COUNT($AC$3:$AC$500))),1,0) > > to meet you 2nd criteria of 5% - 20% > IF((RANK(AC3,$AC$3:$AC$500))<(0.21*(COUNT($AC$3:$AC$500))),1,0) > > to meet you 3rd criteria of 20% - 50% > IF((RANK(AC3,$AC$3:$AC$500))<(0.51*(COUNT($AC$3:$AC$500))),1,0) > > Vergel > > ----- Original Message ---- > From: Jim Hickey <jim@xxxxxxxxxxx> > To: mso@xxxxxxxxxxxxx > Sent: Wednesday, September 12, 2007 7:53:57 PM > Subject: [mso] Re: Conditional format of %range of column > > > Geoff, > > I would use something like this > =3DIF(RANK(A3,Ac$3:Ac$500,1)/COUNT(Ac$3:Ac$500)>=3D0.05,1,0) > > Obviously changing where appropriate. > > Start with that. > > Jim > > -----Original Message----- > From: mso-bounce@xxxxxxxxxxxxx [mailto:mso-bounce@xxxxxxxxxxxxx] On = > Behalf > Of Geoff Culbertson > Sent: Tuesday, September 11, 2007 4:15 PM > To: Mso > Subject: [mso] Conditional format of %range of column > > > In an Excel worksheet I have a column of numbers which have been sorted = > with > the highest at the top. I now want to identify and conditionally format = > the > top 5%, then between 5% and 20%, then between 20% and 50%. I have tried > using the formula <=3D(COUNTIF(AC3:AC500,"*"))*0.05 in conditional = > format but > it doesn't work.=20 > > It works perfectly in a cell, so maybe I will have to have an additional > column which I can hide, but refer to in the conditional format menu. > > Any other ideas? > > Regards > > Geoff Culbertson > Petersfield, UK > ************************************************************* > You are receiving this mail because you subscribed to mso@xxxxxxxxxxxxx = > or > MicrosoftOffice@xxxxxxxxxxxxxxxx > > To send mail to the group, simply address it to mso@xxxxxxxxxxxxx > > To Unsubscribe from this group, visit the group's homepage and use the > dropdown menu at the top. 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This will allow you to unsubscribe your email address or change your email settings to digest or vacation (no mail). //www.freelists.org/webpage/mso To be able to share files with the group, you must join our Yahoo sister group. This group will not allow for posting of emails, but will allow you to join and share problem files, templates, etc.: http://tech.groups.yahoo.com/group/MicrosoftOffice . This group is for FILE SHARING ONLY. If you are using Outlook and you see a lot of unnecessary code in your email messages, read these instructions that explain why and how to fix it: http://personal-computer-tutor.com/abc3/v28/greg28.htm *************************************************************