Plz help me to solve the error

When I run this code it’s giving the correct output but after submission, it’s show wrong. Why does this is happening, plz help me?

Problem Statement-
Pooja would like to withdraw X $US from an ATM. The cash machine will only accept the transaction if X is a multiple of 5, and Pooja’s account balance has enough cash to perform the withdrawal transaction (including bank charges). For each successful withdrawal the bank charges 0.50 $US. Calculate Pooja’s account balance after an attempted transaction.
Input
Positive integer 0 < X <= 2000 - the amount of cash which Pooja wishes to withdraw.

Nonnegative number 0<= Y <= 2000 with two digits of precision - Pooja’s initial account balance.

Output
Output the account balance after the attempted transaction, given as a number with two digits of precision. If there is not enough money in the account to complete the transaction, output the current bank balance.

Code-

/* package codechef; // don’t place package name! /
import java.util.
;
import java.lang.;
import java.io.
;

/* Name of the class has to be “Main” only if the class is public. */
class Codechef
{
public static void main (String[] args) throws java.lang.Exception
{
//Define
int withamo;
double inbalance,fibalance = 0;

	Scanner scan = new Scanner(System.in);
        withamo = scan.nextInt();
	inbalance = scan.nextDouble();

        //Calculate
	if(withamo > inbalance)
	{
	    fibalance = inbalance;
	}
	else if(withamo % 5 != 0)
	{
	    fibalance = inbalance;
	}
	else
	{
	    fibalance = inbalance - (withamo + 0.50);
	}

	//Display
	System.out.print(String.format("%.2f",fibalance));
}

}

Consider this test case.
Input

200 200.00

Expected Output

200.00

Your Output

-0.50