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: [-40.462, 25.746, -82.551, 170.711, 246.55, 219.622, -4.12]
A: 
[-0.076  0.048 -0.154  0.319  0.46   0.41  -0.008]