HP 12c financial calculator Manuale Utente

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202  Appendix F: United Kingdom Calculations 
 
File name: hp 12c_user's guide_English_HDPMBF12E44 
Page: 202 of 209   
Printered Date: 2005/7/29   
Dimension: 14.8 cm x 21 cm 
 
Annual Percentage Rate (APR) Calculations 
In the United Kingdom, the calculation of the Annual Percentage Rate of Charge 
(APR) in accordance with the United Kingdom Consumer Credit Act (1974) differs 
from the calculation of the APR in the United States. Unlike the practice in the 
United States, where the APR can be calculated by multiplying the periodic interest 
rate by the number of periods per year, in the United Kingdom the APR is 
calculated by converting the periodic interest rate to the “effective annual rate,” 
then truncating the result to one decimal place. With the periodic interest rate in 
the display and in the i register, the effective annual rate can be calculated by 
keying in the number of compounding periods per year, pressing w, then 
proceeding with step 4 of the procedure given on page 160 for converting a 
nominal rate to an effective rate. 
Bond Calculations 
Solutions for the price and yield to maturity of United Kingdom bonds are not 
included in this handbook. Actual practice differs according to the type of bond; 
variations such as cumulative and ex-dividend pricing, simple or compound interest 
discounting, etc., may be encountered. 
Application Notes covering such situations may be available in the United 
Kingdom; check with your local authorized Hewlett-Packard dealer.