Instructions: In this task, you will be given a list of numbers. The goal is to divide all the numbers in the list by a constant such that the sum of the resulting list is 1. The output should be rounded to 3 decimals.
Input: [75.281, 11.202, 45.549, 147.105, 249.987, 106.751, -62.839]
Output:
[ 0.131  0.02   0.079  0.257  0.436  0.186 -0.11 ]