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: [-51.255, -60.992, 117.405, 243.481, 133.822, 222.376, 173.927]
A: 
[-0.066 -0.078  0.151  0.313  0.172  0.286  0.223]