Percent Of Total In Rpn Mode - HP 12C Platinum User Manual

Percent of Total in RPN Mode

In RPN mode, to calculate what percentage one number is of another:
1. Calculate the total amount by adding the individual amounts, just as in a
chain arithmetic calculation.
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
percentage of the total sales occurred in Europe ?
Keystrokes
(RPN mode)
3.92\
2.36+
1.67+
2.36
Z
In RPN mode, the hp 12c platinum holds the total amount inside after a percent of
total is calculated. Therefore, to calculate what percentage another amount is of
the total:
1. Clear the display by pressing O.
2. Key in that amount.
3. Press Z again.
For example, to calculate what percent of the total sales in the preceding example
occurred in the U.S. and what percent occurred in the rest of the world:
Keystrokes
(RPN mode)
O3.92Z
O1.67 Z
Section 2: Percentage and Calendar Functions
Display
Keys in the first number and
3.92
separates it from the second.
Adds the second number.
6.28
Adds the third number to get the
7.95
total.
Keys in 2.36 to find what percentage
2.36
it is of the number in the display.
Europe had nearly 30% of the total
29.69
sales.
Display
The U.S. had about 49% of the total
49.31
sales.
The rest of the world had about 21%
21.01
of the total sales.
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