UVa 10370 - Above Average

// UVa 10370 - Above Average
#include <iostream>
#include <stdio.h>

using namespace std;

int main() {
	int c;
	cin >> c;
	for (; c; c--) {
		int n, a[1000];
		cin >> n;
		int sum = 0;
		for (int i = 0; i < n; i++) {
			cin >> a[i];
			sum += a[i];
		}
		double avg = sum * 1.0 / n;
		int above = 0;
		for (int i = 0; i < n; i++)
			if (a[i] > avg)
				above++;
		printf("%.3f%%\n", above * 100.0 / n);
	}
}