01-26-2010, 10:19 AM
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#2
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Administrator
Join Date: Apr 2008
Location: accahelp.com
Posts: 606
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Here is the Syntax of of IRR Function in Excel
IRR( values,guess)
Values is an array or a reference to cells that contain numbers for which you want to calculate the internal rate of return.
- Values must contain at least one positive value and one negative value to calculate the internal rate of return.
- IRR uses the order of values to interpret the order of cash flows. Be sure to enter your payment and income values in the sequence you want.
- If an array or reference argument contains text, logical values, or empty cells, those values are ignored.
Guess is a number that you guess is close to the result of IRR.
- Microsoft Excel uses an iterative technique for calculating IRR. Starting with guess, IRR cycles through the calculation until the result is accurate within 0.00001 percent. If IRR can't find a result that works after 20 tries, the #NUM! error value is returned.
- In most cases you do not need to provide guess for the IRR calculation. If guess is omitted, it is assumed to be 0.1 (10 percent).
- If IRR gives the #NUM! error value, or if the result is not close to what you expected, try again with a different value for guess.
You may also want to check out this video
http://www.auditexcel.co.za/Flash/IR...oject%20v4.swf
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