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: [160.45, 132.75, -57.578, -50.269, -69.387, 234.249, 221.806, -89.204, 100.968]

[ 0.275  0.227 -0.099 -0.086 -0.119  0.401  0.38  -0.153  0.173]