Is it possible to find out formulas behind functions

[jason]

Cant get the PMT function to match up with true values. I
know that I am using the function right because my answers
match up with other Amortization schedules that I have
looked at. However, the PMT is slightly inaccurate. I've
alos tried changing PMT to begining of each period with no
luck. Can anyone help?

Curious.

 

[Niek Otten]

Not with just this information.

What source data did you use? What results did you expect? What did you get
instead?

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Kind Regards,

Niek Otten

Microsoft MVP - Excel

 

[Don Guillett]

Probably rounding somewhere.