/fa/ - Fashion

My scale is slightly physically broken. A small part of one of the sensors on the back came off, and the number changes depending on what tile I weigh on. Can't buy a new one right now.
I know I can't fully trust the numbers, but do they work as an approximation? Like, if I count calories, fast and see the number going down week by week, should I take it into stock, or is it all pointless? If I get three specific numbers consistently, should I just estimate my weight as being somewhere in the middle, or take the lowest one?
Someone who's like 70kg can't get 50kg, even on a broken scale, and the same is true the other way around, right? This shit is doing my head in. Help.