No matter the cin it continues to to output 0 for score. Why is that? I tried returning the "return 0;" but still no go :/

#include "stdafx.h"
#include <iostream>

using namespace std;

// Variables
int enemiesKilled;
const int KILLS = 150;
int score = enemiesKilled * KILLS; 

int main()
{
    cout << "How many enemies did you kill?" << endl;
    cin >> enemiesKilled;
    cout << "Your score: " << score << endl;
    return 0;
}