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.

[-23.15, 242.007, 239.854, -39.314, -99.396]
[-0.072  0.756  0.75  -0.123 -0.311]