Total Calories Calculation on Apple Watch

That seems to be for indoor workouts like weights and stairs and mine say zero at start

(ie I haven't a clue why!)

If all settings normal but behaviour is irrational there is a progressive hierarchy of  remedies...I you want to try them

First force restart the Watch 

i.e. press and hold both the side button and Digital Crown for at least 10 seconds, then release both buttons when you see the Apple logo. 

 Then, although it may seem irrelevant, while it is restarting Force Restart the paired iphone   Force restart iPhone – Apple Support (UK) 

Test it for a while. If it is still misbehaving... Unpair and set up again

 Unpair and erase your Apple Watch – Apple Support (UK) 

and then 

Set up your Apple Watch – Apple Support (UK)

If you've completed that troubleshooting and the issue is still not resolved, Contact Support. 

 Click here > Contact - Official Apple Support

or phone numbers  

Click here > Contact Apple for support and service - Apple Support

and or 

Genius Bar Reservation and Apple Support Options - Apple

I have not seen that on my Workouts, please press the crown and side button together to take a screenshot then post the photo from your iPhone to the forum.

Your daily calories will be generated from just moving around in the day. I can half-close my red ring without any workouts and a active office worker or blue collar worker could probably close it completely (depending on the set goals)