java program put the marks and calculate the percentage (Java) (167)

package com.company;
import java.util.Scanner;
public class Program4 {
    public static void main(String[] args) {
        System.out.println("percentege calculator");
        Scanner per=new Scanner(System.in);
        System.out.println("enter marks of computer science (out of 100):");
        int a=per.nextInt();
        System.out.println("enter marks of english (out of 100):");
        int b=per.nextInt();
        System.out.println("enter marks of math (out of 100):");
        int c=per.nextInt();
        System.out.println("enter marks of physics (out of 100):");
        int d=per.nextInt();
        System.out.println("enter marks of chemistry (out of 100):");
        int e=per.nextInt();
        int sum=a+b+c+d+e;
        System.out.print("total marks from all subjects are:");
        System.out.println(sum);
        float percentage=sum*100/5;
        System.out.println("your percentagge is:");
        System.out.println(percentage);
    }
}