3 Lookup Formula Challenges + 2 Jokes + 1 Link [VLOOKUP Week]

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This article is part of our VLOOKUP Week. Read more.

“Start with a joke.” My boss used to say when I am nervous about an upcoming presentation. Although, I am not nervous to post this article, I think a joke will always help.

So here it goes:

Excel Lookup Formula Challenges

[originally posted on 5th May 2008]

Now to more serious matters.

LOOKUP Formula Challenges - Solve these lookup questions & sharpen your skills

VLOOKUP (and other lookup formulas) are very powerful and quite practical. They can fetch you the information you are looking for from a heap of data.

Now that we have seen the power of VLOOKUP thru several posts this week, I want to test your understanding of these formulas by presenting 3 challenges.

Download the excel workbook with these challenges

Click here to download excel workbook with all the data for these challenges.

Challenge # 1: Price After Discount

We come across this problem quite often. You have a list of discount codes and applicable quantity thresholds. For eg. you may sell an item at $50, but if I buy more than 1 item, you will give a 10% discount. The discount goes up as I purchase more quantity.

Now, given a list of item quantities, how do you calculate the amount payable using lookup formulas? That is our first challenge.

What is the amount payable after discount? - LOOKUP FORMULA CHALLENGE #1

Challenge # 2: Price after accumulated quantity discount

This is essentially same as above formula, but the discounts apply on accumulated quantities bought so far. For eg. I will get first item for 0% discount, 2nd and 3rd items for 10% discount, 4th item for 15% discount … 26th item for 50% discount etc.

Now, given a list of customer names and quantities they bought (in the same order), how do you calculate the amount payable for each transaction?

What is the amount payable after accumulated quantity discount? - LOOKUP FORMULA CHALLENGE #2

Challenge # 3: Closest price based on the quantity purchased

This is an interesting challenge. The price after discount is determined based on the quantity bought. For eg. the discount thresholds are 1, 3, 5, 10, 25 etc. Now, given a quantity of items bought, we determine the price by finding the closest threshold to it. So, a quantity of 7 will get the price from threshold 5 as against 10.

What is the closest price - LOOKUP FORMULA CHALLENGE #3

Few guidelines on solving these challenges:

Although the above problem might appear simple, the solution is not so straightforward.

  • Use a variety of formulas: Do not just rely VLOOKUP. Instead experiment with formulas like SUMIF, COUNTIF, INDEX, MATCH etc. to get results
  • Use helper columns: Break down the problem in to several steps and use helper columns to get the results
  • Use pen & paper: Write down the logic first, then simulate it in excel using formulas. It clears your mind fast.
  • Many solutions exist: Each problem can be solved in several different ways. So once you find a solution, feel free to explore other options
  • Share your solutions: Use comments box to share your solutions with us. I am always looking for new ways to solve problems. So teach me…

Solution to the Challenges:

Here is a workbook with one set of solutions  for the problems. As I said, many other solutions do exist. So use this workbook as an indication of what is possible.

Click here to download excel workbook with all the data for these challenges.

One Link to More VLOOKUP Awesomeness:

Debra at Contextures has chipped in with some interesting videos on VLOOKUP formulas. Check them out here.

The 2nd Joke:

It is quite difficult to set an expectation and then meet it. More so with jokes. But do you know that Chandoo.org’s 404 pages show Excel error messages? For example go to http://chandoo.org/wp/missing_file/. Refresh the page to see a different message. 🙂

It is Diwali (the festival of lights) in India this weekend. So I am going to spend time with family, light some fireworks and relax. I wish you a happy Diwali if you celebrate one. Even otherwise, I wish a lot of light and warmth in to your life this year.

VLOOKUP Week @ Chandoo.org - Learn tips on lookup formulas in Excel

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49 Responses to “Project Management Dashboard / Project Status Report using Excel [Part 6 of 6]”

  1. [...] display milestones Part 4: Time sheets and Resource management Issue Trackers & Risk Management Project Status Reporting – Dashboard Bonus Post: Using Burn Down Charts to Understand Project [...]

  2. Alex says:

    Excellent!

    I was looking forward to this and you've done it again...Shame I can't claim it was all my own work 😉

    ps hope you're getting enough sleep

  3. Izabel says:

    Excelent !!! Tks to share your knowledge with us.
    Izabel
    Sao Paulo - Brazil

  4. Miguel says:

    Nice job!.

    I'm also keen on PM Excel Dashboards. Please, take a look at

    http://screencast.com/t/TyaxH5r4mDf

    That's one example of my Project control Spreadsheets.

    Cheers

  5. [...] haired Dilbert hat zum Abschluss einer Artikeserie zum Thema Projektmanagement mit Excel eine Anleitung zum Bau eines Projekt-Dashboards veröffentlicht. Ein Dashboard ist eine Visualisierungsform für große Mengen von meist [...]

  6. Rishil says:

    Quite a nice and helpful article. I am sure excel is one of the most used application across many many big companies. And your info on project status update using excel would surely be usefull. Keep up the good work on this blog site. Also to share there are some open source flash-based graphing and charting solution which caould also be used on any project..
    http://askwiki.blogspot.com/2009/07/how-to-create-quality-charts-using.html

  7. Chandoo says:

    @Alex, Izabel .. thank you 🙂

    @Miguel: Thank you. Your dashboard looks very good. It is inclined towards the budget and finances of the project. I have kept those aspects out of this series. May be I will revisit the financial aspect of projects at a later point.

    @Rishil: Thank you. Yes, you can create flash based charts (or even simple image based charts) and embed them in a project dashboard that can be published to the team using intranet (like sharepoint). This is how large companies usually do it. Thanks for sharing the Askwiki article.

  8. Tim says:

    Great looking dashboard!! Do you have a version for the Mac versions of Office available?

    Thanks

  9. ravi says:

    Chandoo,
    this is great piece of collating info.I liked it and shall try using it in office.
    Thanks for the all hard work behind this.

  10. Mrigank says:

    Chandoo,

    Kudos. This is really as simple as it gets for laymen. We did this sort of stuff in Consulting - but this can now become really simple for people. Will have my team look at this! Great work.

    thanks,

    Mrigank

  11. [...] I suggest reading my 7 part series on project management using excel. Starting with Excel Gantt Charts to Project Dashboards. [...]

  12. bw says:

    Just downloaded the project management template bundle...great!

    Have you done anywork on a Project Portfolio Dashboard template?

  13. Chandoo says:

    @Bw... Thanks for getting a copy of the templates. 🙂 I have worked on few assignments where we built such templates. But these are similar to other regular dashboard templates. I will share some of these ideas in a later post someday. Meanwhile if you have any ideas on how to structure project portfolio dashboard, let me know using comments or email.

  14. [...] to display milestones Time sheets and Resource management Issue Trackers & Risk Management Project Status Reporting – Dashboard Bonus Post: Using Burn Down Charts to Understand Project [...]

  15. [...] display milestones Time sheets and Resource management Part 5: Issue Trackers & Risk Management Project Status Reporting – Dashboard Bonus Post: Using Burn Down Charts to Understand Project [...]

  16. [...] to display milestones Time sheets and Resource management Issue Trackers & Risk Management Project Status Reporting – Dashboard Bonus Post: Using Burn Down Charts to Understand Project [...]

  17. Josh L says:

    Thanks fro the great ideas! To get a sense of the layout and design of a Dashboard more geared toward Cost and Schedule anaysis, check out the example Dashboard at http://www.ProjectDashboards.com which was built entirely in excel.

  18. DS says:

    hey,

    i just need a simple Chart where by i can show some of the projects by % wise. no dates required.

    1st column Project name and 2nd column will be status (filled with %). can you pls help me out.

    Thanks.

  19. Chandoo says:

    @DS... if you have excel 2007, you can use data bars in conditional formatting for this purpose.

  20. Larph says:

    Hi Chandoo - this series is an excellent resource and tutorial, thank you for sharing.

    When I sat down to consider what my dashboard should look like, one of the most important features for me is to be able to maintain version control and to show simply on what version is on display.

    Apart from the naming convention of the file name, is there a good way to do this within a dashboard? I'd be interested to hear your thoughts!

  21. Chandoo says:

    @Larph: Welcome 🙂

    > You can do version control thru Macros (but always remember that your audience can disable macros)

    > Another option is to use a static time stamp / version number in the title page of dashboard that you update manually whenever you make changes to the file

    > In excel 2010, you can keep track of file versions from File menu. This can be used to select a previous version of dashboard.

    > Best option is to use a version control system like SVN or upload files to Sharepoint or something like that. This will take care of versioning for you (although it is a bit technical and dashboard audience may have difficulty figuring the versions out).

    > The easiest option is to use filenames and the CELL() formula to get the version number (or date) from the filename so you can show it on the dashboard.

  22. Di says:

    Hi Chandoo... I'm following you from Brazil...
    I would like to thank you for the tips about excel, mainly with dashboards ... It helped me a lot …
    Take care...

    Di

  23. Kelly Fidei says:

    On the dashboard when I print, the text is blanked out in the middle of the Issues list - suggestions on how to fix?

  24. Neil Joseph says:

    Hi Chandoo, do you have an equivalent Project Management Dashboard / Project Status Report for MS Office 2010?

  25. Paul Brown says:

    As a Microsoft trainer I'm interested in your choice of Excel for project management. I'm assuming that you've tried Microsoft Project and have decided not to use it? We get folks on our MS Project courses who've tried to use Excel for PM purposes and none of them have made such an impressive project plan, but I wonder is it worth all the effort?

  26. Arc Nteimam Finomo says:

    This looks very interesting. How may I be a part of this

  27. Stephanie says:

    Does this template work in Google Spreadsheets?

  28. Thierry Lutonto says:

    Many thanks for sharing your expertise with us. Keep up the good work 🙂

  29. ppm software says:

    Heya i'm for the first time here. I came across this board and I to find It really helpful & it helped me out a lot. I am hoping to offer one thing again and aid others like you helped me.

  30. Adam G says:

    Hi Chandoo,
    Your PM dashboards impressed me so much that I've downloaded the Portfolio and Project Management package.  All of the documents look very professional.
    I was going through the Portfolio dashboard and I had a question.  
    When I enter in additional holidays they are highlighted in the gantt chart.  Is it possible so that the name of the holiday shows up in the highlighted area of the gantt chart.
    Thanks
    Adam

  31. alan foster says:

    can you confirm that the downloads will work on a mac - excel for mac v14.3.6

    thanks

  32. Paul says:

    Made a slight variation on the schedule sheet,

    1. Add a date column for start
    2. In week column cell use =weeknum() and link to date cell
    3. Hide week column

    When you enter in a date for each task the week number is populated accordingly
    simple but more effective, you can also dynamically link the date cell to your MSP project file for even more automation!!

  33. Irick Burris says:

    I purchased a copy of the project management dashboard excel file. I misplaced the password to unlock the file and make modification. Can you please resend the password.

    Thank much in advance...

  34. ninemsn.com.au says:

    Hi there! I just would like to give you a big thumbs up for your great info
    you've got right here on this post. I'll be returning to your website
    for more soon.

  35. Vijay says:

    I bought ur project management template just want to know how to hide the budget section from portfolio?

  36. Squirrel says:

    Hi, Thanks - very good job you've prepared!
    You've inspired me as well 🙂
    Best regards

  37. mj says:

    Hello!
    I am using a gantt chart template which i got from your website. All is good just when I add all my acitivities in data spreadsheet and then go back to gantt chart to view them, I only see first 9 and then I need to keep scrolling for the next ones. is it possible to see most of the activities if not all in the single frame.
    thanks for answering!

  38. Sanford says:

    This is my first time pay a visit at here and i am actually happy to read all at alone place.

  39. gerald says:

    I am interested in your dashboard; downloaded the locked version, unable to use it...do you have a user guide that is available that I can see and use on the locked version?

  40. Arun says:

    Please send me daily newsletter

  41. Ramya says:

    Hi,
    I downloaded the PM dashboard and the gantt chart only has dates till the year 2016. How do I change this to include 2017 FY as well.
    When I enter a activity for this year , it fails to show up on the chart.

  42. Hari says:

    Hi

    Would.like to purchase the project management .kits

    Pls share the payment link in INR

    Also share your contact number to speak with you

    Regards
    Hari
    9384825926

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