Hi
I found bug in CUMPRINC and CUMIPMT
https://www.dropbox.com/s/zfgvfjp2y505tkb/lo9.png
"S (required)"
"The start period. The first period to be taken into account. A = 1 denotes
the very first period."
https://translations.documentfoundation.org/pl/libo_ui/translate.html#unit=31477258
https://translations.documentfoundation.org/pl/libo_ui/translate.html#unit=31476379