HP 12C Financial 0012C-90001, 12C Financial 12C#ABA, 12C Financial F2231AA#ABA Percent of Total, 28 Section 2: Percentage and Calendar Functions

28 Section 2: Percentage and Calendar Functions

The à key can be used for calculations of the percent difference between a wholesale cost and a retail cost. If the base number entered is the wholesale cost, the percent difference is called the markup; if the base number entered is the retail cost, the percent difference is called the margin. Examples of markup and margin calculations are included in the hp 12c Solutions Handbook.

Percent of Total

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

3.92\

2.36+

1.67+

2.36

Z

Display

3.92Keys in the first number and separates it from the second.

6.28Adds the second number.

7.95Adds the third number to get the total.

2.36Keys in 2.36 to find what percentage it is of the number in the display.

29.69Europe had nearly 30% of the total sales.

The hp 12c 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 Zagain.

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	Display
O3.92Z	49.31	The U.S. had about 49% of the total
		sales.
O1.67 Z	21.01	The rest of the world had about 21%
		of the total sales.

File name: hp 12c_user's guide_English_HDPMBF12E44	Page: 28 of 209
Printered Date: 2005/7/29	Dimension: 14.8 cm x 21 cm