Exercise Calories Topic

U1191392164 01/13/22
I have MyNetDiary linked to my Fitbit so I don't log extra exercise or activities, but why does the linked extra exercise calories start to diminish and as the day progresses? For example at one point today I had 387 Exercise calories and now it's 5:30 p.m. and has dropped to 327. By the end of the day it will be around 140 or so.

Exercise Calories