Section 2

Percentage and Calendar

Functions

Percentage Functions

The hp 12c includes three keys for solving percentage problems: b, à, and Z. You don’t need to convert percentages to their decimal equivalents; this is done automatically when you press any of these keys. Thus, 4% need not be changed to 0.04; you key it in the way you see and say it: 4b.

Percentages

To find the amount corresponding to a percentage of a number:

1.Key in the base number.

2.Press \.

3.Key in the percentage.

4.Press b.

For example, to find 14% of $300:

Keystrokes

Display

 

300

300.

Keys in the base number.

\

300.00

Pressing \separates the next

 

 

number entered from the first number,

 

 

just as when an ordinary arithmetic

 

 

calculation is performed.

14

14.

Keys in the percentage.

b

42.00

Calculates the amount.

If the base number is already in the display as a result of a previous calculation, you should not press \ before keying in the percentage — just as in a chain arithmetic calculation.

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File name: hp 12c_user's guide_English_HDPMBF12E44

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