Highlight best week & month in a trend chart [tutorials]

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When analyzing business data like sales, shop visits or productivity, one of the questions managers always ask is,

What is the best month / week ?

To answer this question, we need to make a chart that looks like this:

Highlight Best week & month in a trend chart - Excel Charting tutorial

How to highlight best week or best month in a chart?

Today, lets learn how to highlight portions of such charts that correspond to best week or best month.

First, an important rule

To highlight data: If you have all the numbers for this chart in a range A1:A100, and you want to highlight the maximum value (or top 10 values), you use conditional formatting.

But with charts: there is no such thing as conditional formatting. So we must imitate the effect. This is done by creating extra series of data (for best week, best month etc.) and formatting it accordingly.

So the rule is To highlight a portion of chart, we need to create another series for that portion and format it the way we want.

Step 1: Create a regular line chart from your data

Lets assume our original data is like this:

Data for trend chart - highlight best week or month in charts

Select it and create a line chart to depict the trend of values.

Step 2: Calculate Weeknum

Weeknum will have the week number for each date. This is calculated by =weeknum(date)&”-“&year(date)

Step 3: Calculate Best week portion

For our analysis, lets assume that best week is the week with highest total sales. To do this:

  1. Add one more column, lets call it weekly total. In this, sum up the total for each week.  The formula =SUMIF(weeknum, current-weeknum, values) will give this.
  2. Now, find the maximum of this column using =MAX(weekly-total)
  3. Add one more column – best week. This will have NA() for all values except the maximum week. The formula for this would be =if(weekly-total=max-weekly-total,value,na())

Step 4: Add the best week series to chart

Copy the best week column and paste it in your original chart.

At this stage, our chart has 2 series:

Add & Highlight best week series to trend chart

  1. Original line corresponding to all dates
  2. Best week line corresponding to only best 7 dates

Format this new series in any way you want. And your chart highlights best week.

Step 5: Follow similar process for Best month

To highlight best month, you need to calculate month, monthly total, max-monthly-total & best month values. Once they are ready, just add the best-month values to the chart and you are done!

Calculations Explained:

See this illustration to understand how the calculations for best week & month work.

Calculations Explained - Highlighting best week and month in a chart - Excel tutorials

Download Example Workbook

Click here to download the example workbook & play with it. The workbook contains 2 charts.

  • Best week & month highlighted
  • Best week & month highlighted along with drop lines

Examine the formulas & resources section of download file to learn more.

Do you highlight portions of charts?

Highlighting a portion of chart is very useful to draw user’s attention. I do this all the time in my dashboards & reports. Unfortunately, there is no automatic way to do this. So we resort to techniques like this.

What about you? Do you highlight portions of charts? What techniques do you use? Please share your ideas & tips using comments.

Also, read more on Dynamic Charts, Excel Tables & Interactive Highlighting in charts.

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22 Responses to “Master Excel 2007 Ribbon with this Free Learning Guide”

  1. Finnur says:

    Thank you, kind sir. Well done with the baby making.

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    I cannot get signed up for your newsletter. I tied both this email address and churchill2001@hotmail.com. never a response.

  3. doug churchill says:

    I cannot get signed up for your newsletter. I tied both this email address and churchill2001_at_hotmail_dot_com. never a response for either attempt.

    • Chandoo says:

      @Doug, it shows that your email address is pending verification. Can you check your inbox (and may be spam folder too) for an email from me? The subject will be "Activate Subscription to Get your Free Excel Tips E-book"

  4. ajay says:

    Very Useful Info..Keep it up..

  5. Chandoo says:

    @Ajay.. you are welcome 🙂

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    I can't open this pdf. I get the error message:

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    What gives??

  8. Mark says:

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  12. rocky says:

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  14. ridwan says:

    hi...
    how to make this add-ins and display in ribbon... check this sample : http://www.cprsoft.com/GCDemo01.htm
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  15. Aleem Qamar says:

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