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: [-21.424, 222.714, 132.503, 247.125, -37.991, 123.45, 72.764, 26.225, 85.479]
A: 
[-0.025  0.262  0.156  0.29  -0.045  0.145  0.086  0.031  0.1  ]