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.
Q: [-61.495, 142.419, 54.372, 220.294, 198.577]
A: 
[-0.111  0.257  0.098  0.398  0.358]