p3.c

  1 #include <stdio.h>
  2 int main (void)
  3 {
  4         double loan_amount, loan_balance, total_interest;
  5         double monthly_payment, monthly_interest_rate;
  6         double interest_rate, interest_for_this_month, left_over_payment;
  7
  8         int years, month;
  9
 10         printf("How many years is your loan?: ");
 11         scanf("%i", &years);
 12
 13         printf("Loan amount?: ");
 14         scanf("%lf", &loan_amount);
 15
 16         printf("Annual interest rate in percent?: ");
 17         scanf("%lf", &interest_rate);
 18
 19         printf("Monthly payment?: ");
 20         scanf("%lf", &monthly_payment);
 21
 22 /*      years = 30;
 23         loan_amount = 200000;
 24         interest_rate = 6;
 25         monthly_payment = 1199.10;
 26 */
 27         monthly_interest_rate = interest_rate/100/12;
 28         total_interest = 0.0;
 29         loan_balance = loan_amount;
 30
 31         for(month = 1; month <= years*12; month++)
 32         {
 33                 interest_for_this_month = monthly_interest_rate*loan_balance;
 34                 total_interest = total_interest + interest_for_this_month;
 35                 left_over_payment = monthly_payment - interest_for_this_month;
 36                 loan_balance = loan_balance - left_over_payment;
 37
 38                 printf("Month(%i)  interest = %10.2lf,  left_over_payment = %1    0.2lf,  balance = %10.2lf\n", month, interest_for_this_month, left_over_paymen    t, loan_balance);


 40         }
 41         printf("Total Interest = %10.2f,\t", total_interest);
 42         printf("Final Balance = %7.2f\n", loan_balance);
 43         return 0;
 44 }