Last week we saw a really cool holiday request form made by Theodor.
This week, we will learn how to combine conditional formatting and data validation to create an awesome data entry form.
First see a demo to understand what I mean:
How to create such a data entry form?
Very simple, just grab a cup of coffee (or your favorite fried-nuts-crushed-and-brewed-with-hot-water) and follow my lead.
Step 1: Set up Data Validation
Assuming you need to gather some inputs, like shown above. First thing to do would be setting up data validation rules in a cell so that your users can specify the type of data they are entering. For eg. they can choose card or paypal or other as payment mode and depending on that, enter further details.
To do this, just select the cell and go to Data > Validation. Choose “List” as the rule and give values.
Step 2: Add conditional formatting rules.
Now, based on the selected value, we need to highlight a set of cells.
Assuming all the data to be gathered in cells C4:G4,
Select first two cells (C4:D4), go to Home > Conditional Formatting > New Rule
Here, we need to tell Excel to highlight the C4 and D4 if the type of payment is Card.
So choose the CF rule type as “Use a formula to determine which cells to format” and the check if $B4 is “card”.
Tip: We need to use $B4 since we want Excel to check column B even if we are applying formatting to C4 or D4. Read more.Step 3: Add Conditional Formatting rules to other cells (E4:F4, G4)
Using the same logic.
Step 4: Bask in glory!
That is all. There is no step 4. We are done. Finish the coffee or whatever you mixed with hot water. Just save the file and send it to your customer, vendor or boss. Bask in glory as there will be fewer data entry mistakes and more awesome.
Home work: Get Creative and do more
You can use some creativity and make the data entry form even more awesome. For example, you could show a tick mark when the data entry is complete. Also you could highlight only when the cell is blank (ie if the data is already entered, there is no point highlighting)
See what I came up with:
I am not going to tell you how to do the above. That is for you to figure out.
Download Excel Files
Click here to download the excel file with the data entry form example. Play with it to understand how to make similar forms. Become awesome!
And if you can not solve the homework problem, download this file and examine it.
How do you make your data entry forms awesome?
I love data validation. It makes the whole process of gathering valid data dead simple. Also, it is an excellent way to change month or other settings in dashboards. (example 1, 2, 3)
What about you? How do you use Data Validation and other excel features to make your input forms both simple and awesome? Please share your experiences and ideas using comments. Go!
Learn More About Data Validation & Conditional Formatting:
As I said earlier, I really love data validation, conditional formatting features of Excel. They are quite powerful and very useful when working with lots of data. We have very good information about these features on chandoo.org. Start with the below articles to learn more.
- What is Conditional Formatting and how to use it? [Video]
- How to create a simple data validation list?
- 5 tips to become conditional formatting rock star
- More tutorials & tips on conditional formatting, data validation
- Recommended: Join Excel School if you work with data often. You will save a ton of time.
15 Responses to “Modeling Interest During Construction (IDC) – Excel Project Finance”
Thanks again for a very helpful post.
I had a similar problem when trying to model a balance sheet and profit and loss projection. The problem was that interest expense (in P&L) was dependent on a cash shortfall (in BS) which had to be funded. The cash shortfall depended on how much interest was paid, so the mutual dependency made a circular reference.
I addressed it with a macro that calculated interest outside of the P&L, then pasted the calculated amount into the P&L as a value. The model was out of balance, but by repeating the pasting and calculating loop the imbalance reduced to zero. It was a bit messy, and had to be repeated every time a line changed - but it worked.
If I have to do it again I'll read this article again first and see if it can be done more elegantly.
Hi,
The use of a circular reference can be avoided in this case. Just make use of the geometric sum to calculate the interest required. I’ll walk through the example from the spreadsheet.
First calculate the cash needed each year without the interest expense. So you year 1 you need 55 Mn, year 2 105 Mn, and 190 Mn for year 3. The total amount to borrow for year 1 is then (50 Mn)/(1-interest_rate) = (50)/(1-0.1). For years 2 and subsequent the amount borrowed is the cash needed in that year plus the interest_rate times the amount already borrowed. For year 2 (105 + interest_rate * sum(previous debt raised))/(1-interest_rate)=(105+0.1*61.1)/(1-0.1).
This process avoids the need for a circular reference, and makes the calculation more stable.
Thanks,
Tristan
The question is for the year 1 in your case, the amount works out to 45 mn. However in the year 2 you have applied the loan amount as 61.1 mn.
Am I missing something ! Please help !
very helpful information!!!
using circular references and to make model more stable we can use combination of "IF" and "ISERROR" functions. i.e
=if(iserror(formula1),"",(formula1))
this formula will return blank value if there is any error otherwise give the result required.
I usually use this in my models and it makes them very stable......
🙂 🙂 🙂
@Terry: Thats right. Exactly same problem is seen in Interest - Cash cycle in P&L and Cash Flow statement as well. In our trainings on financial modeling in excel, we demonstrate using both the circular loops as well as the macros to take care of this problem. Circular loops have their own pitfalls. If the model enters into a state of error, the error percolates!
@Tristan: Thanks for pointing out. I agree with you that if circular loops can be avoided, they should be avoided.
@Yogesh: This is one way of avoiding the problem. Although circular loops have another problem that they make your sheet slower. Each time, there is a change in the sheet, all the calculations are redone. So if they can be avoided, they should be avoided.
Please note that this was an example (a large one indeed) and I didn't have space to speak about the pitfalls of this approach! I just wanted to illustrate an approach and am glad that some of you found it useful!
I think while posting, there is an error in the images! The last image should be flipped with the one that is posted in step VII!
I think you can try the following simple solution given by Microsoft itself to make the circular works:
Windows: Excel Options -> Formulas -> Put a tick on "Enable iterative calculation"
Mac: Excel -> Preference -> Calculation ->Put a tick on "Limit iteration"
You can change the maximum number of calculation iterations as well as the maximum changes which iteration stops for goal seeking or for resolving circular references based on the number you type in the maximum change box.
Thank you.
Hey All
I heard that we can take care of the circularity with the help of macro for IDC. Can anybody help on the steps to construct the macro for the same.
Regards
Vinay
Hi Vinay,
If you look closely, you are essentially copying the values from the interest calculation to the IDC in project cost.
Basically you can record a macro, that takes the values from interest and pastes special the values in IDC row in project cost.
Then you can run that recorded code in a for loop.
Hope this helps.
Thanks Param for reply.
But before calculating interest, i need to provide for Upfront Equity and Equity, which are essentially part of total project cost. Hence, i need to put in Upfront Equity and Equity to calculate the IDC which is again hitting the total project cost.
Bit of confused on how to remove this circular reference.
Regards
Vinay
Wow, this was a brilliantly simple post. I was looking online for a while before I found this page. Never seen this been explained so beautifully yet so crisply before. Thanks for saving my ass at work! (i'm relatively new to finance + modeling)
I'm not sure why but this web site is loading very slow for
me. Is anyone else having this issue or is it a problem on my end?
I'll check back later and see if the problem still exists.
[…] Project Finance Modeling using Excel – Part 1 & Part 2 […]
I have been reading your blog since my college days. Today, I'm writing just to say thanks.
We have calculated Financial Rate of return of a hydropower projects, and the observer has raised an observation regarding Total Project cost with IDC Rs. 8616.01 million (PKR) and with-out IDC 8352.46 million (PKR). How does the Financial nalysis be calculated on the basis of with-out IDC Or With IDC?????
Please helpf. if possible to spare some time.