/*
 * Interest rate program revised to use "for" rather than "while".
 */
#include <stdio.h>
#include <stdlib.h>

#define PRINCIPAL  5000.00               /* start with $5000 */
#define INTRATE       0.06               /* interest rate of 6% */
#define PERIOD        7                  /* over 7-year period */

int main()
{
  double balance;                        /* balance at year's end */
  int    year;                           /* year of period */

  printf("Interest Rate:     %7.2f%%\n", INTRATE * 100);
  printf("Starting Balance: $%7.2f\n\n", PRINCIPAL);
  printf("Period:            %7i years\n\n", PERIOD);
  printf("Year     Balance\n");

  balance = PRINCIPAL;
  for (year = 1; year <= PERIOD; year = year + 1)
  {
    balance = balance + balance * INTRATE;
    printf("%4i   $ %7.2f\n", year, balance);
  }

  return EXIT_SUCCESS;                   /* assume program worked! */
}