HP 30b Business Professional Calculator - Manual (Page 71)

Business Problems 63
2. Find the percent change between 20 and 35 with no compounding.
NOTE: although the example in Table 10-2 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 10-2 Percent Change Example
Keys Display Description
:# Opens the %Calc menu.
<<< Scrolls to %Change.
I Opens the %Change sub-menu.
20I Inputs 20 for Old.
<35
I Inputs 35 for New.
<= Calculates the current value of %Change
for the given data.