HP 20B manual 80I, 30I, What is 30% of 80? 4Part % of Total Example

Business Problems

Note: although the example in Table 8-2 calls for no compounding, you may specify the number of compounding periods used in calculations with the Nb Period item in the %Change sub-menu. Nb Period is the number of compounding periods used in calculations between the old value and new value. The default is 1, but to change the setting, key in a number with Nb Period displayed, followed by I.

After calculating the example above with no compounding, say, for example, you wish to calculate the percent change over six compounding periods:

Table 8-3Percent 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.

3. What is 30% of 80?

Table 8-4Part % 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.

<30I

Inputs 30 for Part.

<=

Calculates the value of Part%Total for the given data.

To reset the menu items to their default values, with any item of the %calc menu displayed press :x. Press >or

<to scroll until %Calc displays and press Ito reset the menu, or Oto cancel. Press Oto exit the menu.

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