Most of you know that during day time I work as a business analyst. Today while preparing some test scenarios for our latest insurance application, I came across a weird problem.
There are some steps in testing. For each test scenario, a combination of these steps is required. It is my responsibility to identify the steps as well as their combinations for each of the scenarios. So I quickly prepared a table with all the steps in left most column and one scenario each in one column. I put “X” in a cell if the step needs to appear in that scenario. But when I gave it to our testing team, they asked me if the scenarios can be explained a little better. See this picture to understand what they want and what I made.
So I immediately converted the “X”s to actual step names using a simple IF formula. (Copied the table, and wrote ‘if there is an X in the previous table, get the actual step from left most column otherwise empty‘).
Then the problem of actually removing various blank cells. First I tried to select all the blank cells and remove them using our technique from last week. But it failed as the blank cells are actually formulas with empty values. So I copy pasted the entire table as values (CTRL+C, ALT+ESV). But even then excel wont recognize blanks as true blanks (because the value is actually “” instead of being plain empty.)
Now I didnt want to manually select all the blank cells as the real testing scenario table had 50 scenarios with 68 possible steps.
Then it stuck me, why not use FIND (CTRL+F) to find all the cells containing nothing? So I selected the scenario table, opened the find and looked up all the cells that contain empty values. Now I clicked on “Find all” and selected the entire list of values from that. Finally I removed all these cells and bingo!
PS: Our testers was more than happy as it took very little time and they had all the scripts ready.
PPS: Thanks to Rick, who taught me FIND ALL approach to select blank cells (here).
6 Responses to “Nest Egg Calculator using Power BI”
Wow! What a Powerful article!
Hello Chandoo Sir
your file does not work with Excel 2016.
how can I try my hands on this powerful nest egg file ?
thanks
Ravi Santwani
@Ravi... this is a Power BI workbook. You need Power BI Desktop to view it. See the below tutorial to understand what Power BI is:
https://chandoo.org/wp/introduction-to-power-bi/
As always, superb article Chandoo... 🙂
Just one minor issue:
While following your steps and replicating this calculator in PowerBI, I found that the Growth Pct Parameters should be set as "Decimal number" not "Whole Number"
OR
we have to make corresponding adjustments in the Forecast formulas (i.e. divide by 100) to get accurate results.
You are right. I used whole number but modified the auto created harvester measure with /100 at end. Sorry I did not mention it in the tutorial.
Instead of
[Growth Pct 1 Value]/12
the monthly rate has to be
(1+[Growth Pct 1 Value])^(1/12)-1
It's a slight difference but in 30 years the future value will be $100k less.