Section 3: Basic Financial Functions

71

Keystrokes

Display

 

 

1f!–1,093.75

Portion of first payment applied to

 

 

 

interest.

 

~

–404.37

Portion of first payment applied to

 

 

 

principal.

 

1f!

~

:n

–1,091.98Portion of second payment applied to interest.

–406.14Portion of second payment applied to principal.

2.00Total number of payments amortized.

If you want to generate an amortization schedule but do not already know the monthly payment:

1.Calculate PMT as described on page 58.

2.Press 0nto reset n to zero.

3.Proceed with the amortization procedure listed on page 69 beginning with step 6.

Example: Suppose you obtained a 30-year mortgage instead of a 25-year mortgage for the same principal ($250,000) and at the same interest rate (5.25%) as in the preceding example. Calculate the monthly payment, then calculate the amounts applied to interest and to the principal from the first month’s payment. Since the interest rate is not being changed, do not press fCLEARG; to calculate PMT, just enter the new value for n, reset PV, then press P.

Keystrokes

Display

 

30gA

360.00

Enters n.

250000$

250,000.00

Enters PV.

P

–1,380.51

Monthly payment.

0n

0.00

Resets n to zero.

1f!

–1,093.75

Portion of first payment applied to

 

 

interest.

~

–286.76

Portion of first payment applied to

 

 

principal.

:$

249,713.24

Remaining balance.

 

File name: hp 12c pt_user's guide_English_HDPMF123E27

Page: 71 of 275

Printed Date: 2005/8/1

Dimension: 14.8 cm x 21 cm