Table 13-15

Calculating the annual interest rate of 9.5%

 

 

 

 

 

Keys

 

Display

Description

 

 

 

d7VÒ

9.50

Stores second interest rate.

 

 

 

 

 

 

Ì

 

-368.38

Calculates payment.

 

 

 

 

 

 

PvÙ4

-13,261.64

Calculates total interest and

 

principal.

 

 

 

 

The first option costs slightly less.

Canadian Mortgages

In Canadian mortgages, the compounding and payment periods are not the same. Interest is compounded semi-annually while payments are made monthly. To use the TVM application in the HP 10bII+, you need to calculate a Canadian mortgage factor (which is an adjusted interest rate) to store in I/YR.

For additional information on interest rate conversions, see Interest Rate Conversions in Ch. 6.

Example

What is the monthly payment required to fully amortize a 30-year, 130,000 Canadian mortgage if the annual interest rate is 12%?

Table 13-16 Calculating the monthly payment for Canadian mortgage

Keys

Display

Description

 

 

 

JG\Ó

12.00

Stores known nominal percentage

 

and number of compounding

 

 

periods.

 

 

 

G\Í

2.00

 

 

 

 

 

 

12.36

Calculates annual effective rate.

 

 

 

 

JG\Í

12.00

Sets payments per year.

 

 

 

 

11.71

Calculates Canadian mortgage

 

factor (adjusted interest rate).

 

 

 

JD::::Ï

 

mortgage.

 

130,000

Stores other known values for

 

 

 

:ÉD:\Ú

360.00

 

 

 

 

 

 

Ì

-1,308.30

Calculates monthly payment for

 

Canadian mortgage.

 

 

 

146 Additional Examples