Resend: Loan payments vs financial calculator mismatch

[Fred Bone]

On 19 October 2009 at 23:19, Geert Janssens said:

[...]
> And more even: the GnuCash' built-in financial calculator give me the
> correct result (+/- a rounding error) with the unmodified parameters.
> 
> I'd expect that inside one program, the same algorithm would be used in
> the different interfaces to calculate amortization tables. However in
> GnuCash this is not the case. Using the same set of parameters gives me
> very different results via the financial calculator and the loan payments
> druid.

What did you enter in the calculator?

If I try it, supplying what seem to me to be the obvious data, it shows a 
payment of 345.37, which agrees with the druid. You said it gives the 
"correct" result, which you gave as 343.53. How do you persuade it to 
give that? (It gives me that if I supply a rate of 5.6%, which again 
agrees with the druid).