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share|improve this answer answered Nov 20 '12 at 22:50 atkretsch 1,355922 add a comment| up vote 2 down vote I once wrote an unround tool, to find the minimal perturbation to How would you help a snapping turtle cross the road? When you enter.3, Excel converts by multiplying by 100—3*100 equals 30%. Unfortunately when you add the individual percentages together manually you get 102.

The code I give below prefers to round up the values on the left. Select all the referenced cells in the lower pane by pressing [Ctrl]+A. Photo Credits Jupiterimages/Photos.com/Getty Images Suggest an Article Correction Related Searches More Articles How to Count Hours Worked in Excel How to Use the \$ Sign in Excel How to Use the Powered by vBulletin Version 4.2.3 Copyright © 2016 vBulletin Solutions, Inc.

You may still have more than one combination with the same error sum, for example 33.3333333, 33.3333333, 33.3333333. If I simply use Math.round(), I end up with a total of 101%. 14 + 48 + 10 + 29 = 101 If I use parseInt(), I end up with a For instance, the user enters 123, but Excel stores and displays that value as 1.23. Just don't limit your functionality for a little formatting ease that you can apply manually.

How to Determine the Number-of-Digits Excel has a numbering system to specify the place value in a ROUND function. Test! This report offers strategies for individuals and businesses, as well as recent federal tax law changes affecting this year’s tax returns. It gives the "whole" numbers that you want.

Respected. I have calculated the values as a percentage of the total and rounded the percentages to show no decimal places. This spreadsheet illustrates your question: The formula in cell B1 (copied to rows two to four) is this: =A1/\$A\$5. I haven't worked out why it works yet but it solves the problem edvwvw Share Share this post on Digg Del.icio.us Technorati Twitter Reply With Quote « Previous Thread | Next

The Accounting number format displays numbers with their decimal points aligned, enabling you to evaluate a column of values quickly. share|improve this answer answered Nov 20 '12 at 23:03 EJP 197k17140249 4 It does NOT ensure that rounding balances out - it just reduces the amount of error by distributing In the Decimal places box, enter the number of decimal places that you want to display. In my mind, to remain true to the numbers, the "right" result is the one that minimizes the overall error, defined by how much error rounding would introduce relative to the

If you don't completely understand a format's purpose, you might get some unexpected results. We keep trying to find the ideal way of tackling it; but, even with the method we describe here, we do not consider we have fully achieved that aim yet. Appease Your Google Overlords: Draw the "G" Logo What advantages does Monero offer that are not provided by other cryptocurrencies? (Somewhat) generalised mean value theorem How to convert a set of I couldn't just sort on the error since there are two errors for each value, but taking the difference resolved that problem.

Then it's guaranteed to add up to 100. By Susan Harkins | in 10 Things, October 18, 2011, 1:40 AM PST RSS Comments Facebook Linkedin Twitter More Email Print Reddit Delicious Digg Pinterest Stumbleupon Google Plus Formats provide visual Putting it all together in Python looks like this. If you are unsure about "place value" or "decimal places," take a quick refresher by visiting our tutorial Rounding Numbers.

Then there must be some set of values which it rounds down which should be rounded up, and vice versa (the two sets are the same size). what must be minimized. Resourceful. That's why I recommend thorough testing when applying custom formats.

Or press [Ctrl]+F. Our function in cell B2, as shown in the formula bar at the top of the image, is: =ROUND(A2*0.25,2) Note: When we entered the function, we typed =round(a2*.25,2). Search our website Section: Excel Functions Tutorial: ROUND Function Fabulous Examples of Excel Functions: The ROUND Function This tutorial teaches the ROUND function of Microsoft Excel. lenze Share Share this post on Digg Del.icio.us Technorati Twitter If you have to tell your boss you're good with Excel, you're NOT!!

Following the example shown in Figure 1, entering the formula =ROUND(SUM(A1:A3),2) into cell A4 produces the anticipated result of zero as shown in Figure 3. Try it, and remember to increase your column width and decimal places so you can see the calculation problem. Here are 10 formatting decisions that require special consideration to ward off potential problems. 1: Rounding values When you round values, Excel's mathematical operations sometimes return results that appear incorrect. To turn this option on in Excel 2013, 2010, and 2007, select File (or the Office Orb), Options (or Excel Options), Advanced, and in the When calculating this workbook section, check

Now there's a clear winner. There's no way in your example to show numbers that add up to 100 without "rounding" one value the wrong way (least error would be changing 9.596 to 9) EDIT You In this case that is 3, so I would add 1 to the first 3 items and floor the rest. For example, the formula =ROUND(-21.29 + 22.26,2) accurately yields 0.97.

Copyright © 2010–2016 DMW Consultancy Ltd · Tonbridge · Kent ↑ top Use this option only if you are certain that the displayed precision will maintain the accuracy of your data. You probably think that's okay, but trust me, it might not be — and troubleshooting the problem later could take a while. So adding if actual == 0: return 0 to error_gen works great. –Nikolay Baluk Apr 26 at 12:35 add a comment| up vote 1 down vote If you are rounding it

Interesting point: The number portion of the number-of-digits entered (e.g. 3) always equals the number of zeros that will exist in the rounded number. In the left pane, select Advanced. Excel provides other rounding functions. Powered by Livefyre Add your Comment Editor's Picks IBM Watson: The inside story Rise of the million-dollar smartphone The world's smartest cities The undercover war on your internet secrets Free Newsletters,

Or use the Zoom tool in the Zoom group on the View tab. sortBy(function(x) { return Math.round(x) - x }).