1 #include<iostream>
2 #include<stdio.h>
3 #include<iomanip>
4 using namespace std;
5 int main()
6 {
7 //freopen("acm.acm","r",stdin);
8 int * score;
9 int i;
10 double sum;
11 int k;
12 int num;
13 int anum;
14 cin>>anum;
15 while(anum--)
16 {
17 cin>>num;
18 sum = 0;
19 k = 0;
20 score = new int[num];
21 for(i = 0 ; i < num ; i++)
22 {
23 cin>>score[i];
24 sum += score[i];
25 }
26 sum = sum/double(num);
27 for(i = 0; i < num; i ++)
28 {
29 if(score[i]>sum)
30 k++;
31 }
32 cout<<setiosflags(ios::fixed)<<setprecision(3)<<double(k)/double(num)*100<<"%"<<endl;
33 }
34 }
