Calorie burn is not accurate on my Versa 2

[karalevans]

My Versa has, in the last two days, not accurately counted my calorie burns. I went from burning 2,800-3k a day to 2,400 daily. My routines and workouts haven’t changed. 
I updated, restarted, etc. 

Anyone know how to fix? 

Moderator Edit: Clarified subject

[MarreFitbit · Accepted solution]

Hi there @karalevans, welcome to the Community Forums. Thanks for the details provided in your post about the inaccuracy calorie burn count on your Versa 2 and for taking the time to already troubleshoot your watch prior to posting here. 

Please note that Fitbit devices combine your basal metabolic rate (BMR)—the rate at which you burn calories at rest to maintain vital body functions (including breathing, blood circulation, and heartbeat)—and your activity data to estimate your calories burned. If your device tracks heart rate, your heart-rate data is also included, especially to estimate calories burned during exercise. The number you see on your Fitbit device is your total calories burned for the day.

Your BMR is based on the physical data you entered in to your Fitbit account (height, weight, sex, and age) and accounts for at least half the calories you burn in a day. Because your body burns calories even if you’re asleep or not moving, you see calories burned on your device when you wake up and will notice this number increase throughout the day. Have you checked if your personal information hasn't been mistakenly changed or modified? or did you manually log an activity that could override your calorie count for that day? Would you mind checking this? Note that your data will be recalculated if you manually log an activity as the manually logged activity takes precedence over data you tracked while wearing your tracker at that point in time. For example, if I am wearing my tracker and walking and I reach 100 calories, then I manually log an activity that starts and ends at that point in time for say 1 hour, Fitbit will calculate how many calories I burned and it may bring my calorie count to something below 100.