Given the task definition and input, reply with output. 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.

[-68.148, 34.193, 6.195, 30.525, -20.859]

[ 3.766 -1.89  -0.342 -1.687  1.153]