Issue 111481 - CUMPRINC needs Help of financial expert
Summary: CUMPRINC needs Help of financial expert
Status: ACCEPTED
Alias: None
Product: documentation
Classification: Unclassified
Component: Online help (show other issues)
Version: DEV300m77
Hardware: All All
: P5 (lowest) Trivial (vote)
Target Milestone: AOO PleaseHelp
Assignee: AOO issues mailing list
QA Contact:
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-05-08 18:39 UTC by Risto Jääskeläinen
Modified: 2017-05-20 11:33 UTC (History)
1 user (show)

See Also:
Issue Type: DEFECT
Latest Confirmation in: ---
Developer Difficulty: ---


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Description Risto Jääskeläinen 2010-05-08 18:39:28 UTC
I am very sorry been not a financial expert but I think there is need for one in
Help lines of CUMPRINC-function and may be also for its UI.
I am quite sure this function is good for user with his loan payback to the bank
for calculation subtotal of principal he is paying. For interest there is some
other functions (for example CUMIPMT). Because mathematic is quite same if we
change bank and user (loan and investment) maybe CUMPRINC is good for investment
too.

In Wizard I can read:

"Cumulative Capital. Calculates the total amount of the repayment share in a
period for an investment with constant interest rate."

Das Kapital jawohl, aber ... why not "Principal" because name of function use
it?  For investment bank is paying "repayment" to the user so this may be
correct but I think "a period" still wrong.  I think there is range of periods
involved?

That for UI. Next to the Help lines:

[hd_id3146139]CUMPRINC
[par_id3150140]Returns the cumulative interest paid for an investment period
with a constant interest rate.

Here is talking about interest payments?  Noway correct!

[hd_id3154502]Example
[par_id3153570]What are the payoff amounts if the yearly interest rate is 5.5%
for 36 months? The cash value is 15,000 currency units. The payoff amount is
calculated between the 10th and 18th period. The due date is at the end of the
period.
[par_id3149884] =CUMPRINC(5.5%/12;36;15000;10;18;0) = -3669.74 currency units.
The payoff amount between the 10th and 18th period is 3669.74 currency units.

I cannot find anything wrong here except that if result is negative. So money is
not coming to user's pockets?  It is not investment payoffs calculation after all?

I hope somebody who knows financing look this case. And I hope this is not all
my misunderstanding. If so I regret.
Comment 1 Uwe Fischer 2010-05-10 08:35:42 UTC
Will take care of this once the Help function CWS hccalc01 is integrated
Comment 2 thorsten.ziehm 2010-09-30 15:32:20 UTC
The CWS hccalc01 is targeted for OOo 3.4. Therefore I change the target of this
issue to that target too.
Comment 3 Uwe Fischer 2011-01-21 12:31:00 UTC
changed target
Comment 4 Marcus 2017-05-20 11:33:22 UTC
Reset assigne to the default "issues@openoffice.apache.org".