beecrowd | 1214
# Above Average

**Timelimit: 1**

By Gordon V. Cormack Canada

It is said that 90% of frosh expect to be above average in their class. You are to provide a reality check.

The input contains many test cases. The first line of standard input contains an integer **C**, 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 ≤ **N** ≤ 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.

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

Sample Input | Sample Output |

5 |
40.000% |