[Zero_cool_1982]

Hello. I'm taking C programming in college. I'm using W7 and code::blocks IDE. This is a homework problem.

The code works but I don't know why at the start of the printed code I have 1000.00 under Total Yearly Amount.

This is my first post. could anyone help me with my code? I don't need the 1000.00 to show. It should start with 1 80.00 1080.00.

I'm not sure what I did wrong.

Thank you for viewing. I posted the code below. Thank you for looking.

Josh

#include <stdio.h>
#define PRINCIPAL 1000.00
#define RATE 0.08
#define MAXCOUNT 10

int main()
{
    int counter = 0;
    float interest, balance, totalYearly, totalInterest, interestEarned;
    printf("Your bank account starts with $1000.00\nand for 10 years 8%% interest is added to each year's total\n\n");

    printf("YEAR   INTEREST EARNED   TOTAL YEARLY AMOUNT\n");
    printf("----   ---------------   -------------------\n");

    while (counter < MAXCOUNT)
    {
        interest = PRINCIPAL * RATE;

        interestEarned = totalInterest + interest;

        balance = totalInterest + balance;

        totalYearly = PRINCIPAL + balance;

        totalInterest = totalYearly * RATE;

        counter ++;

       
        printf("%2d         %6.2f             %5.2f\n", counter, interestEarned, totalYearly);
    }

    return 0;
}

[bullet]

Note here

        interest = PRINCIPAL * RATE;

        interestEarned = totalInterest + interest;

        balance = totalInterest + balance;

        totalYearly = PRINCIPAL + balance;

        totalInterest = totalYearly * RATE;

totalInterest is not being set before you add it to the balance, so the balance is 0.

[Zero_cool_1982]

Thank you for your reply. Are you saying that I have to reorder it?

        totalInterest = totalYearly * RATE;

        interest = PRINCIPAL * RATE;

        interestEarned = totalInterest + interest;

        balance = totalInterest + balance;

        totalYearly = PRINCIPAL + balance;

[Zero_cool_1982]

I got it. I had to add the interest to the totalYearly and it all came out good. Thank you for the help.

Josh

#include <stdio.h>
#define PRINCIPAL 1000.00
#define RATE 0.08
#define MAXCOUNT 10

int main()
{
    int counter = 0;
    float interest, balance, totalYearly, totalInterest, interestEarned;
    printf("Your bank account starts with $1000.00\nand for 10 years 8%% interest is added to each year's total\n\n");

    printf("YEAR   INTEREST EARNED   TOTAL YEARLY AMOUNT\n");
    printf("----   ---------------   -------------------\n");

    while (counter < MAXCOUNT)
    {
        totalInterest = totalYearly * RATE;

        interest = PRINCIPAL * RATE;

        balance = totalInterest + balance;

        interestEarned = totalInterest + interest;

        totalYearly = PRINCIPAL + balance + interest;






        counter ++;


        printf("%2d         %6.2f             %5.2f\n", counter, interestEarned, totalYearly);
    }

    return 0;
}