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AFMIRR Keep getting different answers

Wwilliams197712y ago
Hi Everyone Hope we are all geared up and studying hard for the summer :) I am working through the opentuition lecture notes and I am stuck on an IRR calculation question, chapter 7 example 10
Wwilliams197712y ago#1
you have to calculate cost of debt. the example uses discount rates of 5% and 10%. and gives an answer of 7.51% But when I do the calculation using rates of 5% and 15% i get an answer of 7.88% If I try again using 4% and 13% I get an answer of 7.9%
Wwilliams197712y ago#2
How come I am getting different answers
John MoffatJohn MoffatTutor12y ago#3
It is because the relationship is not linear. Different guesses will give different answers, and that does not matter - you will still get full marks. (If you are more than 1% different, then you have probably made a mistake, but otherwise no problem :-) )
Wwilliams197712y ago#4
Thank you John, that really helps. It has been driving me nuts!
John MoffatJohn MoffatTutor12y ago#5
You should have watched my lecture on this for Paper F9. :-) Glad you are sorted anyway.
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