HP10BII  Periods per Year Setting

One * important * setting that can cause problems is the periods per year setting.  To check the current setting, press "gold shift” ■ and C ALL.  By holding down C ALL, one can check the display for periods per year.  The calculator comes pre-set at 12 periods per year; that is, it assumes calculations will be done on a monthly basis.  However, accounting and finance textbook problems generally use 1 period/year.  To change to 1/year:

Press ■ {C ALL}.

Press 1 ■ {P/YR}.

Now the calculator is set to assume 1 period/year.  To confirm this setting, press and hold ■ {C ALL}.  Unless needed for other work, we generally leave the calculator setting at 1 period per year.

To set this back to default value, press 1 2 ■ {P/YR}.

Note: To verify that this is set correctly, press  ■ {C ALL}, the calculator will display [ 12  P_Yr ] for about 2 seconds.