HP 17bII+ - Manual (Page 50)

50 3: Percentage Calculations in Business
File name : English-M02-1-040308(Print).doc Print data : 2004/3/9
The calculator retains the values of the BUS variables until you clear
them by pressing
@c . For example, pressing @c while in
the %CHG menu clears OLD, NEW, and %CH.
To see what value is currently stored in a variable, press
R menu
label. This shows you the value without recalculating it.
Using the BUS Menus
Each of the four BUS menus has three variables. You can calculate any
one of the three variables if you know the other two.
1. To display the %CHG, %TOTL, MU%C, or MU%P menu from the
MAIN menu, press  , then the appropriate menu label. Pressing
 , for example, displays:
2. Store each value you know by keying in the number and pressing the
appropriate menu key.
3. Press the menu key for the value you want to calculate.
Examples Using the BUS Menus
Percent Change (%CHG)
Example. Total sales last year were $90,000. This year, sales were
$95,000. What is the percent change between last year’s sales and this
year’s?
Keys: Display: Description:
   Displays %CHG menu.