Mine shows when I enter it being different by tenths of a pound (since I weight daily or every few days that's all I'm ever changing by, very rarely is there a change of a full pound or more from one weigh in to another). I had issues with my weight not updating correctly on the site for a bit and another member on here messaged me that the fix was the enter your weight through one of the other sites (fatsecret.ca or etc...) Maybe doing that would fix it? wtg on the 0.3lbs down!