Goal Seek

S

Stuart

Hi,

I have written a macro which does a goal seek on an
internal rate of return generated by a series of cashflows.

The variable is an annual amount of external cash coming
into a company.

The macro is set up to target the IRR @ 15%.

In modelling this, I have set up different scenarios, each
of which require a different amount of external funding to
target the 15% IRR (i.e. one scenario has Capital Costs
increasing by 10%, another scenario has Operating Costs
increasing by 15%, etc).

However, when I run the Macro for these scenarios, none of
them produce an IRR of 15% (I get values like 14.74%,
15.23%, etc).

Is there a reason why the goal seek will not hit 15%
exactly??

Many Thanks,

Stuart.
 

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