Mortgage Calculator

/*--------------------------------------------------------------------------------------------------------------
Programmer : Jesse Moore
Date: September 23, 2020
Description : This program will calculate the monthly payment of a mortgage loan. It will ask the user
for the cost of the house, the amount of the down payment, the yearly interest rate (as a percent like 4.5),
and the number of months for the loan, and allow the user to input the values. It will then calculate the amount
borrowed, monthly payment, total of payments, and the total interest paid, and ouput the amounts 
---------------------------------------------------------------------------------------------------------------*/
#include <iostream>
#include <cmath>
#include <iomanip>
#include <string>
using namespace std;

int main()
{
	//Define variables

	int numberOfMonths;
	double costOfHouse, downPayment, yearlyInterestRate, amountBorrowed, monthlyInterestRate, totalCompoundedInterest, monthlyPayment, totalOfPayments, totalInterest;

	/*Explain the program to the user, prompt the user to input the values for the cost of the house, amount of the down payment, yearly interest rate, and number
	of months for the loan, and allow the user to input the values
	*/

	cout << "This program will calculate the monthly payment of a mortgage loan based on cost of the house, amount of the down payment, yearly interest rate, and the number of months for the loan. " << endl;
	cout << "Please enter the cost of the house (as a decmial):" << endl;
	cin >> costOfHouse;
	cout << "Please enter the amount of the down payment (as a decimal):" << endl;
	cin >> downPayment;
	cout << "Please enter the yearly interest rate (as a percent like 4.5):" << endl;
	cin >> yearlyInterestRate;
	cout << "Please enter the number of months of the loan:" << endl;
	cin >> numberOfMonths;

	//Calculate the monthly payments of the mortgage loan based on the users inputted values

	amountBorrowed = costOfHouse - downPayment;
	yearlyInterestRate /= 100;
	monthlyInterestRate = yearlyInterestRate / 12;
	totalCompoundedInterest = pow(1 + monthlyInterestRate, numberOfMonths);
	monthlyPayment = amountBorrowed * (monthlyInterestRate * totalCompoundedInterest / (totalCompoundedInterest - 1));
	totalOfPayments = (roundf(monthlyPayment * 100.0) / 100.0) * numberOfMonths;
	totalInterest = totalOfPayments - amountBorrowed;
	yearlyInterestRate *= 100;
	
	//Output the values entered by the user including the amount borrowed, monthly payment, total of payments, and total interest, and end the program

	cout << setw(23) << "Cost of house : " << "$" << setprecision(2) << fixed << costOfHouse << endl;
	cout << setw(23) << "Down payment : " <<  "$" << downPayment << endl;
	cout << setw(23) << "Amount borrowed : " << "$" << amountBorrowed << endl;
	cout << setw(23) << "Yearly interest rate : " << setprecision(3) << fixed << yearlyInterestRate << "%" << endl;
	cout << setw(23) << "Number of months : " << numberOfMonths << endl;
	cout << setw(23) << "Monthly Payment : " << "$" << setprecision(2) << fixed << monthlyPayment << endl;
	cout << setw(23) << "Total of Payments : " << "$" << setprecision(2) << fixed << showpoint << totalOfPayments << endl;
	cout << setw(23) << "Total interest : " << "$" << setprecision(2) << fixed << showpoint << totalInterest << endl;
	return 0;
}