[Dev-C++] Calculating interest

[Mitchell, T. (HNA) <Tam...@hj...>]

Can anyone point me to a same program that calculates interest, and
determines number of months it will take to pay off a loan.

I have all my variables set but am not sure how to set up the loop.  I need
to calculate months it will take to pay off  a loan for $1000  ay 18%
interest with payment of $50/month




#include <iostream>
using namespace std;

void main()
{
double payment = 50;

double loan_amt = 1000;

double const interest_rate =.18;
double yrly_int = (loan_amt*interest_rate); 
double monthly_int =(yrly_int/12);
double principle= (payment - monthly_int) ;
double new_bal = (loan_amt-principle);



}


Tamra Y. Mitchell
Database & Operating Systems Analyst
412-237-5232 - Work
412-996-9078 - Cell