Thread: Need Help with some code

hey im trying to write a program that has a loop in it and takes the percentage of the total number of scores and the scores that passed which are above 70
here's my code when i go to run it and input the scores and it comes up with a question mark as an answer

<import java.util.Scanner;
import java.text.NumberFormat;
public class DANPercentPassage {
 
 
	public static void main(String[] args) {
		int score, pass, fail, total;
		double percent;
		percent = 0;
		pass = 0;
		fail = 0;
		total = pass + fail;
		Scanner sc = new Scanner(System.in);
		NumberFormat per = NumberFormat.getPercentInstance();
		per.setMinimumFractionDigits(2);
		per.setMaximumFractionDigits(0); 
		do{
			System.out.print("Enter the score: ");
		score = sc.nextInt();
		if(score>=70)
			pass = pass + 1;
		else if(score>0&&score<70)
			fail = fail + 1; 
		}while(score!=-1);
		percent = (double) pass/total;
 
		if(score == -1)
			System.out.print("The percent of the scores is "+ per.format(percent));
 
 
 
 
	}
 
}
And heres my console window when i run it
 
Enter the score: 80
Enter the score: 80
Enter the score: 35
Enter the score: 35
Enter the score: -1
The percent of the scores is ?%>

Get back to me ASAP

there you go thanks for the tip ill try and that and reply if i still can't figure it out

--- Update ---

when i do that it is saying that it is infinity

ok i figured it out thanks for your help