HP 49g Graphing Calculator - Manual (Page 143)

After you have perfonxied a time-value-of-money calculation, you can
amortize the results, that is, calculate the amormt of principal and the
amount of interest that you pay over a period.
The starting value for the amortization calculations, that is the point from
which the payment and interest details is calculated, is the initial value
(stored in the PV field) in the Time Value of Money input form. To
amortize payments from the previous example, perform the following:
1. Enter details for the time-value-of-money calculation, and find the
monthly payment value as in the previous example.
Press
AMOR.
The Amortize input form is
displayed.
AMOR
to »SHOrt
Amortizing the calculation
^^ftH0F;TI2E§
PriFiCipOt2123.86
lFit4r«5t: 11177.98
Bol'Snce: -147876.14
Enter no. Of pOyHIFitS to -IMOrt
3. In the Payments field, ensure that the
number of payments to amortize is set to
12, and press
amor
.
The financial solver
amortizes the payments and displays the
results.
amor
For the first year’s payments, the financial solver tells you:
® the principal remaining after the number of payments is made
® the interest component of the payments
® the balance of the principal after the number of payments have
been made.
Once you have amortized a batch of payments, you can set the loan
balance as the starting value for amortization. This way you can amortize
payments for each year to compare principal and interest details at
different stages of the loan.
Solving equations Page 6-13