HP 30b Business Professional Calculator - Manual (Page 72)

Business Problems 64
3. 30 is what % of 80?
To reset the menu items to their default values, with any item of the %calc menu displayed
press
:x
. With %Calc displayed, press
I
to reset the menu, or
O
to
cancel. Press
O
to exit the menu.
Table 10-3 Percent Change Example with Compounding
Keys Display Description
The current value of %Change for the given
data.
<6I Inputs 6 for the number of compounding
periods.
>= Calculates the percent change between the
old value and the new value over six
compounding periods.
Table 10-4 Part % of Total Example
Keys Display Description
:# Opens the %Calc menu.
<< Scrolls to the Part %Total menu item.
I Opens the Part as %Total sub-menu.
80I Inputs 80 for Total.
<30
I Inputs 30 for Part.
<= Calculates the value of Part%Total for
the given data.