Does it count as burning calories?

I work at my office at home so I consider myself sedentary for most of the day. I have been trying to take walking breaks throughout the day for 10-15 minutes at a time and I have been counting those as some calories burned. My question is I also have a part time job that I only work once in awhile. For example this saturday I will work from 4-9 at a retail store I am on my feet the whole shift and do a decent amount of walking while I am there. Should I count any of that as "walking" or just not count it at all.

Opinions?