In this task you will be given a list of numbers and you need to find the mean (average) of that list. The mean of a list can be found by summing every number in the list then dividing the result by the size of that list. The output should be rounded to 3 decimal places.
[224.401, 195.151, 183.105, -16.694, -15.311, 97.76, -18.702, 225.634]