The TidBit Computer Store has a credit plan for computer purchases. Inputs are the annual interest rate and the purchase price. Monthly payments are 5% of the listed purchase price, minus the down payment, which must be 10% of the purchase price.

Write a GUI-based program that displays labeled fields for the inputs and a text area for the output. The program should display a table, with appropriate headers, of a payment schedule for the lifetime of the loan. Each row of the table should contain the following items:

• The month number (beginning with 1)
• The current total balance owed
• The interest owed for that month
• The amount of principal owed for that month
• The payment for that month
• The balance remaining after payment

The amount of interest for a month is equal to ((balance * rate) / 12) / 100. The amount of principal for a month is equal to the monthly payment minus the interest owed.

Your program should include separate classes for the model and the view. The model should include a method that expects the two inputs as arguments and returns a formatted string for output by the GUI.

Answer rating: 100% (QA)

class Model def initselfpurchasePriceannualrate012 selfannualrateannualrate selfpurchasePri... View the full answer