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Sorry if this is old

ballygirl (1)
I am trying to write a mortgage calculator for my C++ class and I can't figure out what is wrong. Cost is: $123,500 at 6.5% interest with 10% down.
This is what I have but when I run it I am getting error code.

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#include<iostream>
#include<string>
#include<iomanip>
#include<cmath>

using namespace std;

// Declared constants
const int YEAR_FIFTEEN = 15; // First mortgage total 15 yrs
const int YEAR_THIRTY  = 30; // Second mortgage total 30 yrs
const int YEAR_FORTY   = 40; // Third mortgage total 40 yrs
const int MON_PER_YR   = 12; // # of monthly payments per yr

int main ()
{
	// Declared variables
	
	int numOfPymts1;
	int numOfPymts2;
	int numOfPymts3;
	
	float price;
	float dwnPymt;
	float interestRate;
	float monthlyInterest;
	float pymt1;
	float pymt2;
	float pymt3;

	string lastName;

	cout <<"Please enter the last name of the family purchasing the home; ";
	
	cin >> lastName;
	cout << endl;
	cout << "Please enter the home's price:";
	
	cin >> price;

	cout << endl;
	cout << "Please enter the down payment percentage:";
	
	cin >> dwnPymt;
	cout << endl;
	cout << "Please enter the interest rate as a percentage:";
	
	cin >> interestRate;
	dwnPymt = dwnPymt/100;
	dwnPymt = price/dwnPymt;
	interestRate = interestRate/100;
	
	monthlyInterest = interestRate/MON_PER_YR;
	
	numOfPymts1 = YEAR_FIFTEEN * MON_PER_YR;
	
	numOfPymts2 = YEAR_THIRTY * MON_PER_YR;
	
	numOfPymts3 = YEAR_FORTY * MON_PER_YR;

	system ("pause");
	system ("cls");

	pymt1 =(monthlyInterest*(price-dwnPymt)) *pow ((1 + monthlyInterest), numOfPymts1)/(pow ((1 + monthlyInterest), numOfPymts1)-1);

	pymt2 = (monthlyInterest*(price-dwnPymt))*pow ((1 + monthlyInterest), numOfPymts2)/(pow ((1 + monthlyInterest), numOfPymts2)-1);

	pymt3 = (monthlyInterest*(price-dwnPymt))*pow ((1 + monthlyInterest), numOfPymts3)/(pow ((1 + monthlyInterest), numOfPymts3)-1);

	cout << pymt1 << endl;
	cout << pymt2 << endl;
	cout << pymt3 << endl;
	
	return 0;
}


Thank you in advance for any help you can give
firedraco (6240)
What is the error?
wildblue (1505)
I think you want to multiply the price by the down payment percentage instead of dividing. Otherwise the result is greater than the price entered.

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cout << "Please enter the down payment percentage:";
	
	cin >> dwnPymt;   //sample entry 10
	cout << endl;
	//
	dwnPymt = dwnPymt/100; // = .10
	dwnPymt = price/dwnPymt; // 123500/.10 = 1,235,000


Instead - multipy
dwnPymt = price*dwnPymt; //123500*.10 = 12,350

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