Percent Difference; Percent Of Total - HP 12C Platinum Owner's Handbook Manual

Percent Difference

To find the percent difference between two numbers:
1. Key in the base number.
2. Press } to separate the other number from the base number.
3. Key in the other number.
4. Press à.
Example: Yesterday your stock fell from 35.5 to 31.25 per share. What is the
percent change?
Keystrokes (ALG mode)
35.5}
31.25
à

Percent of Total

To calculate what percentage one number is of another:
1. Calculate the total amount by adding all individual amounts.
2. Key in the number whose percentage equivalent you wish to find.
3. Press Z.
Example: Last month, your company posted sales of $3.92 million in the U.S.,
$2.36 million in Europe, and $1.67 million in the rest of the world. What per-
centage of the total sales occurred in Europe?
Keystrokes (ALG mode)
3.92+
2.36+
1.67}
2.36
Z
Appendix B: Algebraic Mode (ALG)
Display
Keys in the base number and
35.50
separates it from the other number.
Keys in the other number.
31.25
Nearly a 12% decrease.
–11.97
Display
Keys in the first number.
3.92
Adds the second number.
6.28
Adds the third number to get the
7.95
total.
Keys in 2.36 to find out what
2.36
percentage it is of the number in the
display.
Europe had nearly 30% of the total
29.69
sales.
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