HP 113394 User Guide - Page 35

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