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.

Example input: [1, 2, 3]
Example output: [0.167, 0.333, 0.500]
Example explanation: The output list sums to 1.0 and has the same weight as the input 0.333 is twice as large as 0.167, .5 is 3 times as large as 0.167, and 0.5 is 1.5 times as large as 0.333. This is a good example.
Q: [88.848, 87.515, 118.388, -67.696, 171.359, 10.566, -78.47, 49.382, -68.623]
A:
[ 0.285  0.281  0.38  -0.217  0.551  0.034 -0.252  0.159 -0.22 ]