# Above Average

## Input

The first line of standard input contains an integer $1 \le C \le 50$, the number of test cases. $C$ data sets follow. Each data set begins with an integer, $N$, the number of people in the class ($1 \le N \le 1000$). $N$ integers follow, separated by spaces or newlines, each giving the final grade (an integer between $0$ and $100$) of a student in the class.

## Output

For each case you are to output a line giving the percentage of students whose grade is above average, rounded to exactly $3$ decimal places.

Sample Input 1 | Sample Output 1 |
---|---|

5 5 50 50 70 80 100 7 100 95 90 80 70 60 50 3 70 90 80 3 70 90 81 9 100 99 98 97 96 95 94 93 91 |
40.000% 57.143% 33.333% 66.667% 55.556% |