AZ7 - Amortization Schedules

Calculate and display or print an amortization table for level payments
with or without a balloon.  Show totals, balances, etc.  Give special
attention to preventing round-off errors.

Input values are:

    Title of Schedule - Text Title of the Schedule to be printed at the
    top of each page.

    Loan Amount - The loan amount in dollars and cents.  Do not use
    commas or dollar signs.  Decimals are permitted.

    Annual Interest Rate - The interest rate, in percent, for the loan.

    Payment Amount - The payment in dollars and cents.

    Date of Loan - The month number, day number in the month, and year
    separated by "-"s.  For example:  September 13, 1987 = 09-13-1987
    and August 1, 1988 = 08-01-1988.  This is the standard MS-DOS format.
    The schedule will use this date to calculate the date of future payments.
    It allows for the number of days in a month and leap years and adjusts
    the payment date accordingly. 

    Is this a balloon? - answer Yes or No then provide the date of the
    ballon payment or the number of the last payment.

    Select Printer? - enter PRN, LPT1, LPT2, LPT3

    Strike 'return' to continue.  If the program detects an error, it will
    redisplay the sreen and position the cursor in the offending field.

    At the prompt 'Choose *D*isplay, *L*isting, *M*odify, or *E*xit'

        Enter 'D' for a VDT display of the schedule.
        Enter 'L' to print the amortization schedule on your default
                  printer.
        Enter 'M' to modify an input parameter and rerun the program.
        Enter 'E' to exit this module and return to the main menu.

    At the prompt '*F*orward, *B*ack, *D*ate, *P*ayment, *A*nother,
                   *L*ist, *E*xit?'

        Enter 'F' to move forward one page in the display
        Enter 'B' to move back one page in the display
        Enter 'D' to move the display page to a particular date
        Enter 'P' to move the display page to a particular payment no.
        Enter 'A' to enter new data and calculate a new schedule
        Enter 'L' to print the schedule on your default printer
        Enter 'E' to exit the module and return to the main menu

    With these choices, you can calculate the amortization schedule and
    print it on the default printer.  Or, display the amortization
    schedule, one year at a time.  The display can be started with a
    date, payment number, or ballon and then moved forward or backward
    one year at a time.