Definition: 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: [171.489, 67.182, 71.032, 222.037, 129.974, 216.476, -59.02, -38.622, -3.899]

[ 0.221  0.087  0.091  0.286  0.167  0.279 -0.076 -0.05  -0.005]