HP (Hewlett-Packard) 12C 用户手册
Section 2: Percentage and Calendar Functions
35
File name: hp 12c pt_user's guide_English_HDPMF123E27 Page: 35 of 275
Printed Date: 2005/8/1
Printed Date: 2005/8/1
Dimension: 14.8 cm x 21 cm
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.
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?
$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)
(RPN mode)
Display
3.92\
3.92
Keys in the first number and
separates it from the second.
separates it from the second.
2.36+
6.28
Adds the second number.
1.67+
7.95
Adds the third number to get the
total.
total.
2.36
2.36
Keys in 2.36 to find what percentage
it is of the number in the display.
it is of the number in the display.
Z
29.69
Europe had nearly 30% of the total
sales.
sales.
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:
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.
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:
occurred in the U.S. and what percent occurred in the rest of the world:
Keystrokes
(RPN mode)
(RPN mode)
Display
O3.92Z
49.31
The U.S. had about 49% of the total
sales.
sales.
O1.67 Z
21.01
The rest of the world had about 21%
of the total sales.
of the total sales.