Sorting A List Of Numbers By Multiple Columns

I want to sort the list like this:

1) If there is a zero (null) value in all 3 months, these records should be at the bottom sorted by record name (I did not show this field in my file).
2) If there is a non-zero (non-null) value in any of the 3 months, the records will be sorted with each other by total change.

Is there a way to do this without me doing sorts multiple times and manually moving rows of data around (which is what I have done to arrive at the list I have attached)? I am not experienced with VBA or Macros, and would prefer a detailed explanation if a solution is using either method.