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IRR Margin of Safety

MM8y ago
Question/Solution: NPV @ 10% = 1400 NPV @ 20% = (200) IRR = 10 + 1400/1400+200 x (20-10) = 18.75% Margin of Safety of 8.75% (18.75-10) 8.75/10 = 87.5% I don't understand the meaning of the 87.5% at the end. Please advise.
John MoffatJohn MoffatTutor8y ago#1
The current estimate of the cost of capital is 10%. But the estimate could be wrong. However it could be anything up to 18.75% and the decision to accept would still have been the right decision. Therefore it could increase by up to 87.5% of the current estimate before the decision to accept would have been wrong. This is therefore the margin of safety. Have you watched my free lectures on this? The lectures are a complete free course for Paper F9 and cover everything needed to be able to pass the exam well.
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