Section 15

Savings

Nominal Rate Converted to Effective Rate

Given a nominal interest rate and the number of compounding periods per year, this keystroke procedure computes the effective annual interest rate.

1.Press and fCLEARG.

2.Key in the annual nominal rate as a percentage, then press \.

3.Key in the number of compounding periods per year, then press nz¼.

4.Key in 100 then press Þ\$.

5.Press M+to obtain the effective annual interest rate.

Example 1: What is the effective annual interest rate if the annual nominal rate of 51/4% is compounded quarterly?

 

Keystrokes

 

Display

 

 

 

 

 

 

 

 

 

 

 

 

 

 

fCLEARG

 

5.25

 

 

 

 

 

 

5.25\

 

 

 

Nominal rate.

 

 

 

4nz¼

 

1.31

 

 

Percent quarterly interest rate.

100Þ\

 

 

 

 

 

 

 

 

 

$M+

 

5.35

 

 

Percent effective interest rate.

 

For repeated calculations, the following hp 12c program can be used:

 

 

 

 

 

 

 

 

 

 

 

KEYSTROKES

 

DISPLAY

 

 

KEYSTROKES

 

 

DISPLAY

 

 

 

 

 

 

 

 

 

 

 

fs

 

 

 

 

0

 

07-

0

 

fCLEARÎ

00-

 

 

 

0

 

08-

0

 

01-

43

8

 

Þ

 

09-

16

 

fCLEARG

02-

42

34

 

\

 

10-

36

 

n

03-

 

11

 

$

 

11-

13

 

z

04-

 

10

 

M

 

12-

15

 

¼

05-

 

12

 

+

 

13-

40

 

1

06-

 

1

 

fs

 

 

 

 

 

 

 

160

 

 

 

File name: hp 12c_user's guide_English_HDPMBF12E44

Page: 160 of 209

 

Printered Date: 2005/7/29

 

 

 

 

Dimension: 14.8 cm x 21 cm