Excel conditional formatting is a hidden and powerful gem that when used well, can change the outlook of your project report / sales budget / project plan or analytical outputs from bunch of raw data in default fonts to something truly professional and good looking. Better still, you dont even need to be a guru or excel pro to achieve dramatic results. All you need is some coffee and this post to learn some cool conditional formatting tricks.
So you got your coffee mug? well, lets start!
The 5 tricks we are going to learn are,
1. Highlighting alternative rows / columns in tables
2. No-nonsense project plans / gantt charts
3. Extreme Incell graphs
4. Highlight mistakes, errors, omissions, repetitions
5. Create intuitive dashboards
If you are new to Excel Conditional Formatting, please read the Conditional Formatting Basics article before proceeding.
I have created an excel sheet containing all these examples. Feel free to download the excel and be a conditional formatting rock star
1. Highlighting alternative rows / columns in tables:
Often when you present data in a large table it looks monotonous and is difficult to read. This is because your eyes start interpreting the data as grid instead of some important numbers. To break this you try highlighting or changing the background color of alternative rows / columns. But how would you do this if you have rather large table and it keeps changing. The trick lies in Conditional Formatting. (Of course you can use the built-in auto format feature, but we all know how the default settings of various Microsoft products are like).
- First select data part of the table you want to format.
- Go to Conditional formatting dialog (Menu > Format > Conditional Formatting)
- Change the “cell value is” to “formula is” (YES, you can base your formatting outcome on formulas instead of cell values)
- Now, if you want to highlight alternative rows, the formula can go something like this,
=MOD(ROW(),2)=0
which means, whenever row() of the current cell is even, to change the coloring to odd rows, you just need to put =MOD(ROW(),2)=1 as formula
Also, if you want to highlight alternative columns instead of rows you can use the column() formula.
What if you want to change background color of every 3rd row instead, just use =MOD(ROW(),3)=0 instead. Just use your imagination.
- Set the format as you like, in my case I have used yellow color. When you are done, the dialog should look something like this:
- Click OK.
- Congratulations, you have mastered a conditional formatting trick now 🙂
2. Creating a quick project plan / gantt chart using conditional formatting:
Project plans / gantt charts are everyday activity in most of our lives. Creating a simple and snazzy project plan template in excel is not a difficult job, using conditional formatting a bit of formulas you can do it no time.
- First create a table structure like shown above, with columns like Activity, start and end day, day 1, 2,3, etc…
- Now, whenever a day falls between start and end day for a corresponding activity, we need to highlight that row. For that we need to identify whether a day falls between start and end. We can do that with the below formulas,
=IF(AND(F$8>=$D9, F$8<=$E9),"1","")
Which means, whenever, the day number represented on the top row is between start and end we will in 1 in the corresponding cell.
- Next, whenever the cell value is 1, we will just fill the cell with a favorite color and change the font to same color, so that we dont see anything but a highlighted cell, better still, whenever you change the start or end dates, the color will change automatically. This will be done by conditional formatting like below:
- Congratulations, you have mastered the art of creating excel gantt charts now
3. Extreme In-cell Graphs:
Incell graphing is a nifty trick that basically uses REPT() function (used to repeat a string, character given number of times) to generate bar-charts with in a cell. You can apply conditional formatting on top of them to give the charts a good effect. Here is a sample:
The above is a table of visits to Chandoo.org 😉 in the month of January 2008. As you can see I have highlighted (by changing the font color to red and making it bold) for the cells that have more than average number of visits in the month. I am not going to tell you how to do it, it is your home work 🙂
4. Highlight mistakes / errors / omissions / repetitions using conditional formatting:
Often we will do highly monotonous job like typing data in a sheet. Since the work is monotonous you tend to make mistakes, omit a few or repeat something etc. This can be avoided by conditional formatting. I use this trick whenever I am typing something or pasting a formula over a rather large range of cells (for eg. vlookup on annual revenue data of all your accounts, could run in to thousands of rows across multiple states /regions etc.).
Lets see how you can highlight a cell when it has an error:
- First select the cells that you want to search for errors
- Next go to menu > format > conditional formatting and mention the formula as:
=iserror()(see below)
- In the same way you track repetitions, a simple
countif()would do the magic for you, or Omissions (again a countif()) - Thats it, you have learned how to save tons of time by letting excel do the job for you. Sit back and sip that coffee before it gets cold.
5. Creating dash boards using excel conditional formatting:
As I said before you can use conditional formatting to create intuitive sales reports or analytics outputs. Like the one shown here,
Here is how you can do it:
- Copy your data table to a new table.
- Empty the data part and replace it with formula that can go like this (I am using the above table format to write these formulas, may change for your data)
=ROUND(C10,0) & " " & IF(C9 Essentially, what we are doing is, whenever the cell value is more than its predecessor in the data table we are appending the symbol â–² (go to menu > insert > symbols and look for the above one) etc.
- Next, conditionally change the color of cell to red / green / blue or pink (if you want 😉 ) and you are done
- Show it to your boss, bask in the glory 🙂
I have created an excel sheet containing all these examples. Feel free to download the excel and be a conditional formatting rock star.
More DIY Excel Training:
» Excel for Beginners – Tutorials
» Excel Formula Examples
» Pivot Tables
» Project Management using Excel
» Excel Dashboards
» Advanced Excel
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)
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[…] 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.