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.
[-21.98, -54.246, 62.344, 93.878, 41.631, 70.048, -89.421, -54.176, 25.603, 8.237]