system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If my bathroom scale shows different numbers around the house, which number should I trust?

**Didn't know if this was the right subreddit for my question, but here goes:**    
I have a digital bathroom scale, and I know it works properly. Recently I moved into a new flat, and it's an old house, so all the floors are a bit wonky. I have no idea where it's even and where it's not.   
  
**It shows numbers all the way up to 67,8 kg and all the way down to 65,0. Should I just find the mean number between all the results, or should I trust the highest? Or the lowest?**
gpt
Find something in your house that you know weighs a certain amount for sure.  E.g. a new bag of rice or potatoes or whatever. Weigh that in different areas of your house and see where you get the most accurate reading. Just use your scale in that spot.