...which is significantly more helpful. I can eat less and not lose weight if my reduction of intake still doesn't bring me below my caloric burn rate. Comparing the two is the most helpful, because a person can tailor it to their situation:

Am I spending loads on unused subscriptions or take out each month? Maybe reduce it. Or, I'm pinching pennies and could benefit with polishing my resume'/gaining certificates and applying for better jobs for the next undefined period of time.

As with food. With the caveat that you are tracking calorie intake and burn, not "food" intake and burn, volume and 'fill' aren't 1:1