AZ5 - Calculate Interest Rate

Calculate the true interest rate when given the amortization of a loan 
or regular annuity.  Useful for 'Truth in Lending' calculations.  AZ5 
accepts input in the forms normally associated with a real estate loan.  
This program allows a final or 'BALLOON' payment of a different amount 
from the regular payment to be entered.

Input values are:

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

    Total Number of Payments - Enter the number of payments including 
    the balloon payment; i.e. a 30 year loan with 12 payments a year is 
    a 360 payment loan.

    Regular Payment Amount - Payment amount in dollars and cents.

    Balloon Payment Amount - Balloon payment (one time payment at the 
    end of a loan)  amount in dollars and cents.

    Assumed Annual Interest Rate - The interest rate, as a percentage, 
    that you think applies to the loan.  If you do not know, guess.  It  
    only slows the program down a little.

This program solves the present value equation for the true interest 
rate and gives the answer as a percentage.  If you desire hard copy, 
use the print screen function on your computer.