Consider the data file below:

$ cat data3

pchen72 10

jmaszk 5

bvbui 13

mtcrowle 50

mrchave3 34

Write a script to display the percentage of rows below and over the average.

The average is 22.4 and should be set in the BEGIN block.

The output should be (result displayed with 1 decimal point):
Total number of records: 5
60.0% of the records are below the average
20.0% of the records are above the average

The header line should show: Percent above average