The average rate change of a function is given by the formula:

So lets apply our formula to each one of our intervals:
For [-4,-2]

For [-2,1]

For [-3,1]

For [-4,0]

We can conclude that you should fill your table as follows:
[-4,-2]----->6
[-2,1]----->1
[-3,1]----->2
[-4,0]----->4