HP 30b - Business Professional Calculator - 10 Business Problems; The Percent Calculation Menu

Business Problems
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10 Business Problems
Figure 1 The Menu Map for the Percent Calculation (%calc) Menu
The Percent Calculation Menu
Press :# to open the menu. There are four items in this menu:
1. Markup as a percentage of cost (Mkup. %C)
2. Markup as a percentage of price (Mkup. %P)
3. Part as a percentage of total (Part%Tot.)
4. Percent change (%Change).
These items allow you to access sub-menus. Press
< or > repeatedly to scroll to the
desired sub-menu, then press I to open it (see Figure 1).
To change the value of a displayed item, key in a number and press I. Once you
have entered all known data, press
< or > repeatedly to scroll to the unknown item
and press = to calculate it.
DWN DWN
INPUT
DWN
:#
Mkup.%C Mkup.%P
Part%
Tot.
%Change
Cost
Price
Cost
Price
Mkup.%P
Total
Part
Part%
Tot.
Old
New
%Change
INPUT
INPUT
INPUT
DWN
Mkup.%C
DWN
Nb Period
DWN
DWN
DWN