Creating drop-down function in excel

[Jorrg1]

Hi

I have an excel dilemma. I have created an excel sheet which compares different monthly amounts. In the attached excel file, the blue box now compares April to March.
Is it possible to create a drop-down function where you can choose which month you want to compare?


Thank you!


Dilemma 5.xlsx

[Excel Fox]

Create a data validation say in K4 having the different month names. Use this in J5 and drag down

=IFERROR(IF(1+$K$2<G5/INDEX($D5:$G5,MATCH($K$4,$D$4:$G$4,0)),(G5/INDEX($D5:$G5,MATCH($K$4,$D$4:$G$4,0)))-1,"OK"),"OK")

[Jorrg1]

Thanks! Is it possible to make it even more advanced? I want to be able to compare all the months that I want to choose, for example february to january. Not always use April, if you know what I mean?

thank you!

[Excel Fox]

When you say compare all months, what exactly do you mean? You have to keep one month as the base, right? The other month you can choose using a drop-down in K4. So if it's the drop-down you want, then just use Data Validation as I mentioned above. If it's something else you are looking for, then can you explain a bit more, or post a sample file that can explain what you are trying to say.

[Jorrg1]

So I have to keep one month as the base? It is possible to have a system where you can easily change the base month? for example I want to compare february and january, as well as this month to last. I want to have system that is as automatically as possible.

Please see the attached file.:
If I am gonna insert the numbers for May month, I then want May to be the base. So, either have a system where you can choose which month that is the base OR have a system where the last month is always the base.

Was that understandable?

Thank you!

Dilemma 5.xlsx