Calories remaining: Watch vs iPhone/elsewhere

I believe that on the Watch, the number shown is calories burned plus basal calories so far minus calories consumed, whereas elsewhere it is calories burned plus basal calories for the whole day minus calories consumed. As a result, the numbers for Burned & Consumed match, but the number for Remaining is much less on the Watch than elsewhere. Is this a bug or a feature? I'd prefer the Watch to match the other devices, if possible. Is there some way to make it so?