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DISK2177
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AMORT.DOC
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1989-05-08
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AMORTIZE.EXE
LOAN CALCULATION AND AMORTIZATION PROGRAM
COPYRIGHT (C) 1987 J. GORDON ROWE
DEVELOPED BY:
ROWE SOFTWARE
912 PARK AVE.
MARION, S.C. 29571
(803) 423-5352
THIS PROGRAM IS A SHAREWARE PRODUCT. IF YOU FIND IT USEFUL,
YOUR CONTRIBUTION OF $20 TO THE AUTHOR WILL BE APPRECIATED.
PLEASE SEND YOUR NAME, ADDRESS AND ANY SUGGESTIONS FOR
IMPROVEMENTS. FUTURE UPDATES ARE FREE TO REGISTERED USERS.
** DISCLAIMER **
ROWE SOFTWARE MAKES NO REPRESENTATIONS OR WARRANTIES WITH
RESPECT TO THE ABOVE MENTIONED PRODUCT AND SPECIFICALLY
DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR ANY PURPOSE.
1. INSTALLATION-
This program may be used with any PC compatible system
with a minimum of 256K with an MDA or CGA compatible
video adapter. The program may be used on either a
floppy or hard disk system.
The program AMINSTAL.EXE allows the user to change the
color settings for data entry, text and borders. The
file AMORTIZE.EXE must be in the current directory for
the installation to work properly. To use the install
program, log onto the directory containing AMORTIZE.EXE
and AMINSTAL.EXE. Type AMINSTAL at the DOS prompt.
The program will display 128 combinations of foreground
and background colors. At the bottom of the screen, the
program will display the current settings for data
entry fields, screen text and borders. You can alter
these simply by entering the number of the desired
setting. Use TAB to select data entry, screen text or
borders. When you have entered the desired settings,
press ESC to save and exit. If you make a mistake, you
can always repeat the installation procedure. NOTE: If
you have an MDA video adapter, try setting the data
entry color to 2. This will underline the data entry
fields.
The installation process changes the file AMORTIZE.EXE.
If you copy the file to another computer that has a
different video adapter, you may need to install
different color combinations. For example, if you
install the program on a machine with an MDA adapter,
and set the data entry color to 2 (underline), and then
copy the program to another machine with a CGA adapter
and a monochrome screen, the data entry fields may not
be visible. (Color 2 on a CGA adapter is blue on
black.)
2. OPERATION-
To start the program, be sure you are logged onto a
directory containing AMORTIZE.EXE and AMORT.HLP. At the
DOS prompt, type AMORTIZE and press Enter.
Press <F1> to exit the program at any time.
Press <F10> to view the help screen at any time except
when viewing, printing or filing a schedule.
2.1 MENU FUNCTIONS
LOAD will load a schedule previously saved on disk. You
may specify the drive and/or directory.
EXAMPLE: C:\ACC\SCHED1.AMT
SAVE will save the current schedule setting in a file
on disk. You may specify the drive and/or directory.
You may use any valid DOS file name. If the file name
you choose already exists, the program will ask you
whether you wish to overwrite the existing file.
EDIT will allow you to edit the parameters for the loan
schedule. This procedure is described in section 2.2.
PRINT will allow you to print the schedule. Any PC
compatible list device will work. NOTE: The program
sends an ASCII character 13 to activate the printer's
form feed. If this does not work with your printer,
please note your printer's make, model and form feed
sequence when you send in for your registration. You
will receive an updated version that will work with
your printer.
When selecting PRINT, VIEW or FILE, you can choose
the type of report and the month on which you wish to
subtotal. The detail report will output each payment,
whereas the summary report will show annual totals
only. (If payments are annual, the summary report
will show only a total for the entire loan.)
VIEW allows you to view the schedule on screen. Allow a
moment for the report to begin. Pressing <F3> will
switch between slow and fast output. Pressing <F5>
will pause the display and pressing <F7> will abort
the display.
FILE will allow you to file the report in ASCII format
on disk for use with a word processor or spreadsheet
program. You may use any valid DOS file name and you
may specify the drive and/or directory.
2.2 EDITING THE SCHEDULE
The EDIT menu selection allows you to specify the known
variables for the loan schedule. You may also enter 2
heading lines. Use the following keys:
<UP> or <TAB> Move to the previous
field.
<LEFT> or <RIGHT> Move laterally within the
field.
<INS> Set insert mode on/off.
<DEL> Delete character at
cursor position.
<SPACE> Change values for
frequency and loan type.
<ENTER> Accept current value and
move to next field.
<ESC> Return to menu.
PRINCIPAL is the amount borrowed. The number should be
entered as dollars and cents separated by a decimal
point.
INTEREST RATE is the annual percentage rate of the
loan. The number should be entered as a percentage
IE. 10.75% should be entered as 10.75.
NUMBER OF PERIODS is the term of the loan in periods.
This number must be entered as a whole number.
EXAMPLE: If the loan is for 10 years and the payments
are monthly, then enter 120.
FREQUENCY is the interval at which payments are due.
The default frequency is monthly. This can be changed
by pressing the space bar. Payment frequencies can
range from weekly to annual. Be sure the frequency
and number of periods correspond correctly. EXAMPLE:
If the term of the loan is 2 years and the payments
are to be made bi-weekly, then enter 52 for number of
periods and set frequency to bi-weekly.
LOAN TYPE is the method for calculating the loan
amortization. Standard type uses a fixed payment to
amortize the loan. (The standard type will adjust the
final payment if necessary to cover the proper amount
of interest.)
Rule of 78's type also uses a fixed payment, but
amortizes based upon the rule of 78's.
The fixed principal type loan uses a decreasing
payment. The payment is calculated for each interval
by adding the accrued interest to the principal
payment. Typically, the fixed principal amount will
be the entire principal amount divided by the number
of periods. Enter the fixed principal amount in
dollars and cents, separated by a decimal.
PAYMENT is the amount of the periodic payment. This
should be entered in dollars and cents separated by a
decimal. With a fixed principal type loan, this is
the amount of the first payment.
BALLOON if the principal remaining that is not
amortized by the payments over the specified period.
This should be entered in dollars and cents separated
by a decimal.
FIRST PAYMENT DATE is the date on which the first
periodic payment falls. The date must be entered in
MM/DD/YY format.
HEADING allows you to enter 2 lines of text which
describes the schedule. These lines will appear on
printed and filed reports, and will be automatically
centered.
PRESS ESC at any time to exit the editing function.
2.3 SOLVE (F2)
You may solve for the following variables:
PRINCIPAL
INTEREST RATE
NUMBER OF PERIODS
FIXED PRINCIPAL AMOUNT
PAYMENT
BALLOON
Once you have entered the known variables, press F2,
use the cursor keys to highlight the variable you
wish to solve, and press enter. The program will give
you an error message if insufficient data exists.
To solve for : You must know:
PRINCIPAL Interest rate
Number of periods
Fixed principal amount
(if required)
Payment
Balloon (if desired)
INTEREST RATE Principal
Number of periods
Fixed principal amount
(if required)
Payment
Balloon (if desired)
To solve for : You must know:
NUMBER OF PERIODS Principal
Interest rate
Fixed principal amount
(if required)
Payment
Balloon (if desired)
FIXED PRINCIPAL AMOUNT Principal
Interest rate
Number of periods
Balloon (if desired)
PAYMENT Principal
Interest rate
Number of periods
Fixed principal amount
(if required)
Payment
Balloon (if desired)
BALLOON Principal
Interest rate
Number of periods
Fixed principal amount
(if required)
Payment
When solving, the program disregards the current
value of the variable to be solved. Therefore, when
editing a schedule, you may simply leave that
variable with a value of zero.
When solving for interest rate, allow a moment for
the program to return a value.
NOTE: when solving, be sure that you do not solve for
a variable that you are currently editing.
3. SUGGESTIONS-
It is common for a loan to have a delayed first
payment date. Typically, if the first payment date is
later than 1 period from the loan date, the
additional interest is capitalized into the
principal, resulting in a higher payment. To
calculate the correct payment for this type of loan,
determine if additional interest is to be charged and
capitalized. If so, add the additional interest to
the principal before solving for the payment.
EXAMPLE: A loan is made for $20,000 on
January 1, 1989 at 10% for 120 standard
monthly payments. The first payment is
delayed until March 1, 1989. Depending upon
the terms of the loan, this may result in
additional interest of $166.67. To determine
the proper amortization, set the principal to
$20,166.67 and solve for the payment.