I manage a toy dept. in a retail store where I stock shelves, on my feet for a good 8 to 8 1/2 hours a day. up and down ladders, bending, twisting, reaching, paperwork, cleaning up after everyone, you name it. Not always walking at a constant pace but walking like there's a fire 85% of the time. How do I figure the most accurate lifestyle. I would rather underestimate my calories burned then over but I just am stuck. Any help would be great. Thanks in advance!

I would think Strenuous Work or Highly Active, but since you want to underestimate maybe look into Standing Work.