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.
[-40.464, 89.31, 9.354, -66.801, -79.293, 75.378, 106.269, -99.079, 120.199, 150.995]