I pulled the content from this post because it is inaccurate. Here’s a link to the followup post.
How to Calculate Personal Rate of Return (TimeWeighted Rate of Return)
9 responses to How to Calculate Personal Rate of Return (TimeWeighted Rate of Return)
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April 28, 2006
Star Money Articles for the Week of April 24
Here are interesting posts and news this week from the MoneyBlogNetwork members and beyond: Consumerism Commentary discusses fancy weddings on a budget. AllFinancialMatters does some fancy math in telling us how to calculate personal rate of return. Mi…

I would be interested in seeing your excel spreadsheet.
I’ve seen two ways to calculate rate of return. The first is from the Association of Investment Management and Research (AIMR) in Charlottesville, Virginia. Their calculation is :
Monthly Return = (EB – ½C + ½W) / (BB + ½ C – ½W)
where BB is beginning balance, EB is ending balance. C is contribution during the period and W is withdrawal in the period.
The other, which I think may be better, uses the XIRR function in Excel. I think it is better since it allows contributions/withdrawals that are more time dependent within the period being measured. It takes an annualized value (provided by XIRR) and converts it to a given period value. The formula is:
((XIIR result)+1)^((Ending date – Starting Date)/365)1
^ is power of in Excel. Ending date – Starting Date gives you the number of days being used in the measurement.
Regards,
Leif
HI,
I am a new reader of your blog and I find it really useful, maybe few months or years down the line I will also start a financial blog of mine
If you can send the excel file to me I’d like to use it, though I dont invest right now.
I am in the earning phase right now
http://www.gummystuff.org/xirr.htm
This is a very good explanation of XIRR.
Dear Sir:
1. I want to know the excell sheet of Economic Rate of Return where the input value will be 1 time capital cost, 20 years Overhead and maintenance cost = total cost, and my benefits are ( Increasing land value, Increasing trade and business, saving Maintenance cost= total Benefits) and last Net Benefits after Finding out I will figure out whether I will invest for the Road or not for construction.
(Non Revenue Project)
Given,
PV = 12%, year 20 years
Find,
Economic Rate of Return
Benefit Cost Ratio
Net Pesent Value
2. Financial rate of Return of Construction of a building Input [One time capital cost O & M Cost for 20 years, Sell of Room, Rental value of rooms= total income, lastly Net Income all will decide me whether I will go for the construction or not,
(Revenue Generating Project)
Given,
NPV Discount factor = 8%, year 20 years
Find,
Financial Rate of Return
Benefit Cost Ratio
Net Pesent Value
I was planning on lending some money to a investment group. How can I calculate the return on a loan?
I would love to see the excel spreadsheet of time weighted return as well?
Please send me the excel spread sheet.
Thanks
I’d like to see the excel spreadsheet of time weighted return too.