This is a guest post written by Paramdeep from Pristine. Chandoo.org is partnering with Pristine to bring an excel financial modeling online training program for you.
This is Part 6 of 6 on Financial Modeling using Excel
In this tutorial we are going to learn how to build assumptions & input sheets in our excel financial model. The 6 parts of this tutorial are,
- Introduction to Financial Modeling
- Building a layout for Project Evaluation Model – Best practices
- Building Inputs and Assumptions Sheet
- Building Projections for Project Evaluation
- Modeling the Cash Flow Statement and Projections
- Putting it all together – Final Project Evaluation Model
- Join our Financial Modeling Classes
I am sorry for the slight delay in the post. Things have been very hectic for the last few weeks as we were just completing our training on Financial Modeling in Excel – Real Estate (RE) sector for JP Morgan. The real estate valuation is very similar to the project evaluation that we are doing for the simple reason:
- Project evaluation and real estate valuation are limited duration projects (If you intend to sell the RE project in near future) unlike general companies (which are an on-going concern)
- For both these the timing of the cash is very important. A delay in the timing might appear to be ok for the developer, but the investor’s calculations (typically IRR) go for a toss
In India most of the RE developers are businessmen, who are concerned about the cash that the project generates. They are not really too bothered if they receive it in April or September (After all they are getting the cash). But the investors are really bothered by these delays – Some PE investors have a limited period investment horizon and some are too concerned about the IRR generated by the project. As we figured out in our class, Real estate projects are very sensitive to delays in cash generation! Excel is a great tool to show this effect in a matter of 30 secs (Use XIRR and data-tables). Maybe I will write about this functionality in one of my posts later!
For the time being lets come back to our project.
What is time value of money?
Let me start with a very simple to understand example.
- If you invest $100 in bank today, what would be its value 1 year down the line (assuming 10% interest rate)?
- The value should be 100*(1+10%) = $ 110.
- Now if you keep this invested for another year, what would be its value 2 years down the line?
- The value should be 110*(1+10%) = $ 121. I can also write it as 110*(1+10%)^2
- Similarly if you keep invested for 10 years, the value would be 110 * (1+10%)^10
This is the simple concept of compounding.
The inverse of this concept (What if you wanted $110 after 1 year, or 110*(1+10%)^10 after 10 years), how much should you invest today, is called discounting. Clearly $100 today is worth $110 a year after and $121 two years hence.
If I have more than 1 cash flows, I can discount them depending on the time duration and if I sum them all, its called Net Present Value (NPV) of all cash flows. We would take the outflows as Negative Cash and inflows as Positive Cash.
In excel, you can either discount all cash flows or calculate the NPV of the project by using the function =NPV(Discount Rate, Cash)
What is the rate on which money should be discounted?
When equity investors invest, they take greater risk as compared to banks lending money. Obviously their expectation of return would be higher. In some cases, the equity investor might have a return figure in mind (Based on the risk I am taking, I would like to have Min. 15% return on my invested money).
Sometimes, this expected return can be calculated by using the capital asset pricing model (CAPM). What this states is very simple – Equity investors want a premium apart from the risk free rate (Lets call this expectation of equity investors as Re) . So there are two parts to the return expectation:
Re = Risk Free + Premium apart from Risk free
Now this premium depends on how much risk I am taking (Typically measured with respect to the volatility in returns with respect to the benchmark index). So I say:
Re = Risk Free + Beta * (Market Returns – Risk Free Returns)
The beta measures the movement of your returns with respect to market returns.
Now apart from the equity investors, there would be some debt in the project. Typically debt holders expect a lower return (Lets call it Rd).
The overall expectation of return from the project is the weighted average of these returns, Re and Rd.
To create this switch in the model, I have used data-validation (so that the user can just input one of these options)
To create such a drop down, use data validation – list option in excel
Internal Rate of Return
The same concept can be viewed from a return angle as well. If I can calculate a discount rate that makes the present value of the expected cash inflows just equal to the initial cost of the project, then that rate would be sort of a break even rate for me (Considering the time value of money). This rate is called the Internal rate of return (IRR).
Many investors have a certain hurdle IRR in mind and if the project is generating an IRR less than the hurdle IRR, they would not invest in the project.
To calculate IRR, there is no analytical solution possible. You can use the excel function =IRR(Cash) to get the IRR of the cash flows.
Making a decision in our case
First let me summarize the decision criteria for you. I would invest in the project based on the following conditions:
NPV Rule:
- If NPV > 0: The project may be accepted (Please note that positive NPV is not a sufficient condition)
- If NPV = 0: The investor should be indifferent
- If NPV < 0: The project must not be accepted (Please note that positive NPV is a necessary condition)
Please note that sometimes people might decide to take on the project even though the NPV is negative!
IRR Decision Rule
- If IRR > the required rate of return, accept the project
- If IRR < the required rate of return, reject the project
In our case, we are getting the NPV to be 21 and an IRR to be 12%. In this case it’s a borderline case and my feeling is that Mr. Samar would invest in the project (After all Mohit is his son!!) J.
Download Project Valuation Templates
I have created a template for you, where the subheadings are given and you have to link the model to get the cash numbers! You can download the same from here:
Project Valuation Template – Blank
You can go through the case and fill in the yellow boxes. I also recommend that you try to create this structure on your own (so that you get a hang of what information is to be recorded).
Also you can download this filled template and check, if the information you recorded, matches mine or not! 😉
Project Valuation Template – Solution
I am just doing that for the single sheet model and recommend that you do the same for multi-sheet model as a homework problem. If you face any issue, post your excel with the exact problem and we can discuss the way to move forward.
Next Steps
We are not done with a basic model for evaluation of a project. There are other nuances that we could not tackle (Given the time and space constraint) – What if the cash does not come at year end, what could be the scenarios in which this project is not a viable project, what can be done to make the project more interesting, etc. I do hope that you found the posts interesting and look forward to your comments and suggestions!
Read previous part of this series – Modeling Cash-flow projections
How do you make project investment decisions?
We are very eager to learn from your experience and know your ideas. What methods of valuation do you use? How do you model them? Share using comments.
Join our Financial Modeling Classes:
Chandoo.org is partnering with Pristine to bring an online financial modeling training program for you. Click here to learn more about our financial modeling class & join.
Added by Chandoo:
Thank you Paramdeep & Pristine:
Many thanks to Paramdeep and Pristine for making this happen. I am really enjoying this series and learning a lot of valuable tricks about financial modeling.
If you like this series, say thanks to Paramdeep. I am sure he can take any amount of appreciation without choking.
Pristine is an awesome training institute for CFA, PRIMA, GARP etc. They have trained folks at HSBC, BoA etc. Chandoo.org is partnering with Pristine to bring an excel financial modeling online training program for you.
42 Responses to “Prevent Duplicate Data Entry using Cell Validations”
Hi Chandoo, I need you help in the following problem.
I'm trying to get a direccion from a found result. With this dirreccion I will want the before cell value. For example, If result of a find is 38 localized in cell $C$2, I need to get previus value (cell $B$2 ), maybe Andrés.
Do you know some way to do that?
Thank you for you help.
Hi Chandoo
Thanks for this. One thing though: In my pre-2007 version of Excel, the COUNTIF function doesn't recognise a semicolon (;), but requires a comma.
Is the semicolon an Excel 2007 thing?
Jair... I am not sure I understand what you want. what do you mean by Dirreccion?
@Lincoln: I am sorry, often I forget that I am using European version of excel where the delimiter is ; instead of ,. I have corrected the formula now.
Thanks for this nice tip, i used to do a find all after filling every new items which was cumbersome.
Do you know a way to extend this validation search to other tabs/sheets ?
Thanks for you attention. I'm trying to get of value continue from a found value. Let me show a example:
Name Years
John 35
Maria 28
Teresa 32
If I search the max years, the result is 35, but I need that result to be John. Do you know how I can do it?
@Subbu.. you can easily extend the validation to other sheets by pasting the data validations. See the latest article here: http://chandoo.org/wp/2009/10/28/copy-data-validations/
@Jair.. you can use the large() or small() formulas to do this. for eg. =index(A1:A3,large(B1:B3,1)) will get you the name of the person with highest "years". More help here: http://chandoo.org/excel-formulas/large.html
Hi, I don't know if I'm using bad the formula or its performance is diferent for my Office version. Large() formula return the value in the cell, in my example 35. The index() formula use a range, row and column. I'm using the large() as number of row, and it is bad because into the range don't have row 35. This is my perception. What do you think?
Hi, I going to prove, with this solution by JLD http://jldexcelsp.blogspot.com/2008/07/extraer-direccion-de-celda-en-matriz.html
Hello,
I am trying to attempt data validation in Excel Mobile, but the DV tool isnt available. I want to prevent duplicates is all, any advice on acheiving this in Excel Mobile? Thanks..
@Jair... my french aint that good. it starts at "merci" and ends at "beau coup".
Anyhow, you need to merge the large with vlookup to do this. I am not sure if you have solved the problem. Otherwise let me know with details and I can write the formula in comments.
@Chad... I have never used excel mobile, so I have no idea. May be they have not implemented data validations in excel mobile.
Any excel mobile users out there?
Hi Chandoo, the proposed solution by JlD is interesting. He created a macro to get values when the matrix is not one dimensional, how on my problem. This fuction for me.
I would like to share you my work, how can I upload?
@Jair.. sorry for such a delayed reply.. you can upload the files to skydrive and link them here. Or you can email them to me at chandoo.d @ gmail.com and I will upload them somewhere. But it could take forever if you email files to me as I am a bit lazy.
[...] Day 31: Advanced Data Validation Tricks in Excel – Part 2 [...]
Hi,
Can you help me in Microstrategy?
Br,
Moin
really wonderful article. I feel it is implementing Primary Key concept into spreadsheets.
Hi article on data validation. Excel is a very versatile platform to work with and we use it for all kinds of data tabulation. In fact this must have been the most rudimentary data management tools I must have worked with and knowing such tips only adds functuionality to our user experience. Great article. looking forawrd to read more.
Hi Chandoo,
Thanks for such a nice idea.
I tried copy paste the data into the validated area, but the pop-up msg (warning msg) doesn't came. Is it something that we need to update the data manually each time,.
Do we have any option where we can bulk upload the number and it throws a warning message that the data already exits and do we want to continue with this ?
Please do reply me.
Thank you.
Regards,
Vasanth.
It was really useful chandoo...thanks a lot...
Tried this in excel 2010 and it did not work?
Could the newer excel have changed that much?
@Leo
It works fine in Excel 2010
The formula used above =COUNTIF($B$4:$B$11,B4)<=1
only applies to the range B4:B11
Did you adjust the range to your data?
This page helped me accurately to find solution of my question. thanx
we want to prevent duplicate entries in three columns combined, using data validation, i.e. say, column A has first name and Column B has middle name, Column C has last name. the first name can be duplicate, middle name can be duplicate, last name can be duplicate, but not all three at the same time.
I want to prevent duplicate entries in three columns combine, using data validation, i.e. say, column A has first name and Column B has middle name, Column C has last name. the first name can be duplicate, middle name can be duplicate, last name can be duplicate, but not all three at the same time.
Hi, I've tried above validation method to prevent duplicate value from entering into the cells. It's work, when user key in the data into the selected range. However, it's not working when user copy-&-paste the info into the same range.
Please advice. Thanks.
Hi Chandoo,
Does it work in Excel 2007?
Please Reply
thanks chandoo........
it does not work when data is copy pasted...any solution for this??
hi i m shaloo and i want to know in excel if i write duplicate no.then it says or show about we are write duplicate no.
Hi Chandoo
I've tried using this with a Named Range, which is actually a column in a Table as DV wont accept a table reference, and it wont work.
Also tried using Offset to specify the Named Range, but that wont work either.
Is it possible to use Named Ranges with DV?
Thanks
Kris
I have tried the above formula on a table column. The Error box does not pop up, there is only the small ! next to the cell with the duplicate. The column I am working with is formulas that produce a date. Is the reason it doesn't work that the cells contain formulas rather than data?
The formula works but only if I enter data in cell above it. So for example, if I have "123" in B11 it does not allow me to enter "123" in B10, B9, B8, etc. But I can still enter "123" in B12. Please help! 🙂
Great tip.. thanks a lot
I have 21 years of experience working as data entry assistant. I constantly read several blogs to keep myself up-to-date with the advances in data entry profession. I really enjoyed this blog post. From my several years of experience, I agree with you 100% when you say, “ We all know that data validation is a very useful feature in Excel. You can use data validation to create a drop-down list in a cell and limit the values user can enter. ”
Keep blogging. I will come here again.
--data entry assistant
Hi,
This is really very helpful.
Thank you
how can i assign two validation on a single cell
one is for list validation (means the data should be from that range)
second i want to prevent them from repetition
how can i do this ?
P7 to P506 have GR# which are for list
i want to prevent C column to not to repeat and should be from the P column
@Junaid
Can you please post the question in the Chandoo.org Forums
http://forum.chandoo.org/
You have to register to be able to post questions
Please attach a file so that a specific answer can be delivered.
i made an account but there is no option available to post questions ??
where can i ??
@Jubaid
Goto http://forum.chandoo.org/
Goto Ask an Excel Question
Post New thread
Type your question
Attach a file
Please attach a file so that a specific answer can be delivered.
friend can any one tell me the formula
exname location qty
gaurav 1 1
rofan 2 5
sandeep 3 6
gaurav 4 3
rofan 5 4
sandeep 6 8
gaurav 7 9
If this is a data.
if i want a formula by which if i type gaurav then all the location and qty should be shown in a new page.
i had 5,00,000 sku so if i punch one name i can get the entire details
@Gaurav
Can you please post the question at the Chandoo.org Forums
http://forum.chandoo.org/
Please attach a sample file for a quicker more targeted response
IF(ISERROR(INDEX($B$3:$C$9,SMALL(IF($B$3:$B$9=$B$12,ROW($B$3:$B$9)-ROW($C$2)),ROW(A1:C1)),2)),"",INDEX($B$3:$C$9,SMALL(IF($B$3:$B$9=$B$12,ROW($B$3:$B$9)-ROW($C$2)),ROW(A1:C1)),2))
please explain
YOUR COUNTIF FORMULA IS REALLY HELPFUL AND WORKS. I TRIED SEVERAL SITES BUT THEIR FORMULA DOES NOT WORK. ONLY YOU HAVE GIVEN A RIGHT FORMULA!
THANK YOU!!!!!