10bii Future Value and Present Value wrong answers

[DanNick]

Hye, same as mine, actually that not wrong answer but depending on your P/YR, if P/YR set to 12, you will get different answer, how to know P/YR is 12?you press [GOLD Shift][C ALL], it will display 12 P_yr,

So, how to set P/YR to 1,

Press [Gold shift] [C ALL] and then press 1 [Gold Shift] [P/YR].... Now the calculator is set to assume 1 period/year. To confirm this setting, press and hold [Gold Shift] [C ALL]. Unless needed for other work, we generally leave the calculator setting at 1 period per year.

***if you reset the calculator, the default P/YR is 12

[Joe_Horn · Accepted solution]

---

@DanNick wrote:

...how to know P/YR is 12?you press [GOLD Shift][C ALL], it will display 12 P_yr

---

You can also recall it without clearing anything else, by pressing [RCL] [gold shift] [P/YR].

[Tim_Wessman]

Note, reset means "completely wipe all memory and reset the device to factory".

Just doing a C-ALL will NOT change the P/YR setting. That will be retained to what you have it set to before the clear. 

[Maké]

Hi!, @DanNick:

You can see, various examples of TVM, as ...

https://support.hp.com/us-en/document/bpia5185

https://support.hp.com/us-en/document/bpia5125

In three pages, you can see ... http://www.tvmcalcs.com/index.php/calculators/hp12c/hp12c_page1

If it has served you, to solve, your problem, you can grant, as Solved. In this way, it can serve other users. Also, you can grant Kudos, if you want to thank, the help provided.